College Math Lesson 7 & 8
If a single die is tossed once, find the probability that you roll 9.
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A. 9 |
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B. 0 |
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C. 1 |
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D. |
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Find the median of 6, 10, 16, 27, 39, 43, 48. If necessary, round to one decimal place.
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A. 16 |
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B. 27 |
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C. 27.5 |
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D. 39 |
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Find the mode or modes (if any) of 5, 9, 53, 3, 2, 8, 43, 1, 4, 16.
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A. 8 |
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B. 13.8 |
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C. 9 |
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D. no mode |
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You toss a single die, and then toss a coin. Draw a tree diagram to find the number of possible outcomes.
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A. 12 outcomes |
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B. 2 outcomes |
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C. 8 outcomes |
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D. 6 outcomes |
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You toss two coins. Draw a tree diagram to find the number of possible outcomes.
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A. 3 outcomes |
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B. 4 outcomes |
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C. 1 outcome |
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D. 2 outcomes |
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The following test scores were recorded for a student: 73, 65, 61, 61, 73, 75. Find the mean, median, and mode.
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A. mean: 69 median: 68 mode: 73 |
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B. mean: 68 median: 61 mode: 75 |
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C. mean: 69 median: 69 mode: 61 |
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D. mean: 68 median: 69 mode: 61 and 73 |
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If a single die is tossed once, find the probability that you roll 6 or 3.
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A. 9 |
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B. |
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C. |
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D. |
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You pick a number from 1, 2, 3, or 4, and then toss a coin. Draw a tree diagram to find the number of possible outcomes.
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A. 1 outcome |
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B. 8 outcomes |
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C. 6 outcomes |
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D. 2 outcomes |
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ou toss two six-sided dice. Draw a tree diagram to find the number of possible outcomes.
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A. 36 outcomes |
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B. 2 outcomes |
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C. 12 outcomes |
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D. 1 outcome |
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Find the mode or modes (if any) of 20, 36, 46, 36, 49, 36, 49.
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A. 49 |
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B. 38.9 |
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C. 36 |
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D. 46 |
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The following test scores were recorded for a student: 99, 94, 92, 88, 94, 80, 90. Find the mean, median, and mode.
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A. mean: 91 median: 88 mode: 99 |
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B. mean: 92 median: 88 mode: 94 |
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C. mean: 92 median: 91 mode: 99 |
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D. mean: 91 median: 92 mode: 94 |
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Find the mean of 59, 43, 95, 26, 110, 77. If necessary, round to one decimal place.
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A. 81.8 |
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B. 67.7 |
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C. 68.7 |
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D. 68.2 |
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Find the median of 8, 14, 21, 25, 30, 47. If necessary, round to one decimal place.
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A. 21 |
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B. 23 |
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C. 25 |
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D. 20.5 |
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The following test scores were recorded for a student: 99, 69, 96, 69, 78. Find the mean, median, and mode.
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A. mean: 85.5 median: 96 mode: 99 |
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B. mean: 82.2 median: 78 mode: 99 |
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C. mean: 102.8 median: 87 mode: 69 |
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D. mean: 82.2 median: 78 mode: 69 |
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Find the median of 2, 2, 26, 14, 49, 42, 39. If necessary, round to one decimal place.
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A. 14 |
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B. 25.4 |
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C. 39 |
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D. 26 |
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You choose a number (1, 2, 3) and then a vowel (a, e, i, o, u). Draw a tree diagram to find the number of possible outcome.
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A. 5 outcomes |
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B. 8 outcomes |
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C. 15 outcomes |
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D. 12 outcomes |
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The grades are given for a student for a particular semester. Find the grade point average. The point values of grades are given below.
A : 4, B : 3, C : 2, D : 1, F : 0
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Grade |
Credit Hours |
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D |
4 |
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F |
1 |
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A |
3 |
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C |
2 |
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F |
4 |
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A. 2.8 |
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B. 14 |
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C. 1.43 |
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D. 1.4 |
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Find the mode or modes (if any) of 89, 44, 32, 44, 29, 89.
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A. 44 |
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B. 54.5 |
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C. 89, 44 |
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D. 89 |
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Find the mean of 17, 12, 8, 11, 8, 4, 4. If necessary, round to one decimal place.
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A. 8.6 |
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B. 10.7 |
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C. 10.6 |
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D. 9.1 |
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Find the mean of 5, 5, 9, 5, 12, 9. If necessary, round to one decimal place.
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A. 9 |
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B. 7.5 |
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C. 8 |
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D. 6 |
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Multiply -2(0).
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A. -4 |
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B. 2 |
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C. -8 |
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D. 0 |
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Choose the alternative that best represents the quantity. Luke climbed 137 up a mountain.
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A. -137 |
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B. +137 |
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Find the sum of -34 and 47.
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A. 13 |
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B. 81 |
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C. -13 |
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D. -81
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Simplify (-6)(-5) + 8.
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A. 10 |
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B. 38 |
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C. -22 |
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D. 22 |
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Multiply -9(20).
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A. 171 |
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B. -200 |
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C. -180 |
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D. -171 |
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Choose the alternative that best represents the quantity. The bottom of a lake is 183 feet above sea level.
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A. -183 |
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B. + 183 |
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Choose the alternative that best represents the quantity. Sara recorded a deduction of $143.88 in her checkbook.
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A. +143.88 |
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B. -143.88 |
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Simplify 48 ÷ 24 (-6).
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A. -12 |
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B. -0.33 |
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C. -3 |
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D. 2.67 |
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Subtract 3 – 14.
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A. 17 |
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B. -11 |
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C. 11 |
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D. -17 |
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Add the numbers -2 + 4 using the number line.
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A. 2 |
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B. -6 |
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C. -2 |
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D. 6 |
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Add the number 3 + (-1) using the number line.
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A. -2 |
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B. 2 |
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C. 4 |
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D. -4 |
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Divide -34 ÷ 2
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A. -17 |
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B. -27 |
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C. |
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D. 17 |
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Choose the alternative that best represents the quantity. The temperature recorded at the airport was 43° above zero.
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A. +43 |
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B. -43 |
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Multiply -47(9).
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A. -135 |
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B. -423 |
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C. -112 |
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D. 112 |
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Choose the alternative that best represents the quantity. The team scored 25 points.
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A. +25 |
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B. -25 |
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Divide 18 ÷ (-9).
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A. 2 |
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B. 3 |
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C. -2 |
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D. -3 |
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Choose the alternative that best represents the quantity. Big Ben’s Plumbing recorded a profit of $287 last month.
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A. -287 |
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B. +287 |
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Subtract -15 – (-4).
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A. -11 |
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B. -19 |
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C. 19 |
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D. 11 |
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Divide -18 ÷ 2.
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A. -10 |
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B. 9 |
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C. -8 |
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D. -9
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Subtract 15 – (-2).
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A. -17 |
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B. -13 |
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C. 13 |
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D. 17 |
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Evaluate the expression for the given replacement values and choose the alternative that best expresses the answer. 6 + 5x for x = 3
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A. 21 |
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B. 11 |
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C. 9 |
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D. 30 |
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Simplify the expression 12(4z + 5) -3.
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A. 16z + 14 |
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B. 36z + 45 |
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C. 48z + 57 |
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D. 48z + 2 |
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Solve b + 12 =14.
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A. -26 |
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B. -2 |
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C. 2 |
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D. 26 |
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Write the phrase “A number less 15” as a variable expression. Use x to represent “a number.”
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A. 15 - x |
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B. |
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C. 15x |
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D. x - 15 |
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Simplify the expression 6x + 7(x + 9).
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A. 13x – 63 |
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B. 42x + 16 |
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C. 7x + 63 |
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D. 13x + 63 |
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Evaluate the expression for the given replacement values and choose the alternative that best expresses the answer. x + 2z for x = 4, z = -5
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A. -6 |
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B. 9 |
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C. -1 |
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D. 14 |
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Write the phrase “19 plus a number” as a variable expression. Use x to represent “a number.”
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A. 19 |
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B. 19x |
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C. 19 – x |
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D. 19 + x |
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Write the phrase “135 less a number” as a variable expression. Use x to represent “a number.”
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A. 135 – x |
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B. 135 |
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C. x + 135 |
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D. 135x |
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Write the phrase “The total of a number and 119” as a variable expression. Use x to represent “a number.”
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A. 119 – x |
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B. 119 |
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C. 119x |
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D. x + 119 |
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Solve 2z = -6.
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A. -8 |
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B. 8 |
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C. 1 |
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D. -3 |
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Simplify the expression 3(7 – x) + 5.
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A. 26 – x |
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B. 16 + 3x |
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C. 26 – 3x |
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D. 16 – 3x |
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Write the phrase “36 decreased by a number” as a variable expression. Use x to represent “a number.”
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A. x - 36 |
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B. |
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C. 36x |
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D. 36 - x |
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Solve -9y = -162.
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A. -153 |
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B. 153 |
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C. 2 |
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D. 18 |
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Solve.
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A. |
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B. 1 |
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C. |
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D. |
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Simplify the expression -4(9y + 3) – 3.
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A. -36y |
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B. 36y + 9 |
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C. -36y -15 |
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D. -36y -24 |
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Write the phrase “The difference of a number and 25” as a variable expression. Use x to represent “a number.”
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A. |
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B. 25 - x |
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C. 25x |
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D. x - 25 |
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Evaluate the expression for the given replacement values and choose the alternative that best expresses the answer. x – y + z for x = 23, y = 9, z = 3
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A. 11 |
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B. 35 |
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C. 17 |
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D. 18 |
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Simplify the expression 4(x – 3) + 2.
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A. x – 10 |
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B. 4x – 1 |
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C. 4x – 14 |
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D. 4x – 10 |
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Evaluate the expression for the given replacement values and choose the alternative that best expresses the answer. -y – z for y = -2 and z = 6
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A. -8 |
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B. 8 |
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C. -4 |
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D. 4 |
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Solve 4x = 16.
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A. 64 |
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B. 12 |
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C. 4 |
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D. 20 |
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