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URGENT PLEASE: You purchase a new guitar and take out a loan for $450. You have 18 equal monthly payments of $28 each. What is the simple interest rate for the loan? Round to the nearest tenth of a percent,
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URGENT PLEASE: You purchase a new guitar and take out a loan for $450. You have 18 equal monthly payments of $28 each. What is the simple interest rate for the loan? Round to the nearest tenth of a percent, if necessary.

User Paulo Merson
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5.1k points

1 Answer

6 votes
Answer:
8%

Explanation:
The amount repaid is ...
A = P(1 +rt)
Filling in the given values, we can find r.
(18ยท28) = 450(1 +r(18/12)) . . . . . t is in years
504 = 450 + 675t

54/675 = 0.08 = 8%

The simple interest rate on the loan is 8%.
User Anko
by
5.1k points
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