MAT-105-2785-Basic Mathematics-10/2016

Part 1

Complete

6.

10.

22.

Part 2

12. A penny has a 1-cm radius. What is its diameter? Its circumference? Its area?

14. The circumference of a quarter is 7.85 cm. What is the diameter? The radius? The area?

16. The standard backyard trampoline has a diameter of 14 ft. What is its area?

18. A roller-rink floor is shown below. Each end is a semicircle. What is its area? If hardwood flooring costs $32.50 per square

meter, how much will the flooring cost?

Part 3

Solve using the addition principle.

28.

32.

Solve using the multiplication principle

24.

28.

Part 4

74.

76.

78.

80.

30. The second angle of a triangular parking lot is four times as large as the first. The third angle is 45° less than the sum of the

other two angles. How large are the angles?

32. In Baltimore, Maryland, taxis charge an initial fee of $1.80 plus $2.20 per mile. How far can a passenger travel for $26?

34. Ella invested money in a savings account at a rate of 6% simple interest. After 1 year, she has $6996 in the account. How

much did Ella originally invest?

36. Alvin borrowed money from a cousin at a rate of 10% simple interest. After 1 year, $7194 paid off the loan. How much did

Alvin borrow?

38. Tyler paid $117.15, including a 6.5% sales tax, for a car battery. How much did the battery itself cost?