Question

Paul has $900 to invest in a savings account that has an annual
interest rate of 1.8%, and a money market account that pays 4.2%
per year. Write a polynomial for the interest he will earn in one year
if he invests x dollars in the savings account.

Answer 1

Answer:

0.024x + 16.2

Step-by-step explanation:

step 1:

4.2%x = 0.042x

step 2:

1.8%(900 - x)

=16.2 - 0.018x

step 3:

0.042x + 16.2 - 0.018x

=0.24x + 16.2