Alida has $140,000, part of it invested in bonds paying 9% and the rest in a certificate account at 5%....

Alida has $140,000, part of it invested in bonds paying 9% and the rest in a certificate account at 5%. Her annual income from the two investments is $8760.

a. Use x for the number of dollars invested in bonds and y for the number of dollars invested in the certificate account, and fill in the table with appropriate expressions.

   

b. Write one equation about the amount Alida invested.
ANSWER: [removed]  

c. Write a second equation about Alida's annual interest.
ANSWER: [removed]  

d. How much did Alida invest at each rate?
ANSWER: Alida invested $[removed] at 9%, and she invested $[removed] at 5%.