Homework Help: Math

Posted by Alex on Thursday, August 19, 2010 at 12:00am.

Choose the one alternative that best completes the statement or answers the question.

Solve the problem. Assume that simple interest is being calculated in each case. Round your answer to the nearest cent.

Martin takes out a simple-interest loan at 7.5 %. After 6 months, the amount of interest on the loan is $69.64. What was the amount of the loan?

I do not understand how to do this homework question can someone please help me to understand how to figure this one out thank you so much

Math - Allison, Thursday, August 19, 2010 at 1:08am
principle= rate x time
p=rt
$69.64=7.5% x t
solve for t
Math - Alex, Thursday, August 19, 2010 at 2:06am
But how do you figure out T?

Out of the multiple choice answer nothing is coming close to one of the answers

these are the multiple choice answers
A)

$2116.98

B)

$18.57

C)

$1857

D)

$1818.44
Math - drwls, Thursday, August 19, 2010 at 2:53am
Allison's equation is wrong.

interest earned = P*i*t, where t = 0.5 years, P is the original loan amount, and i = 0.075 is the annual interest rate.

69.64 = 0.0375 P

P = $1857

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