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zaharov [31]
3 years ago
12

Manuel borrowed a total of $4000 from two student loans. One loan charged 4% simple interest and the other charged 3.5% simple i

nterest, both payable after graduation. If the interest he owed after 1 year was $150, determine the amount of principal for each loan.
Business
1 answer:
hichkok12 [17]3 years ago
7 0

Answer:

the principal amount at a rate of 4% is 2000

principal amount at a rate of 3.5% is 4000-2000 =2000

Explanation:

We have given total amount borrowed = $4000

Let x amount is borrowed at a rate of 4%

So $4000-x is borrowed at rate of 3.5%

Total interest = $150

We know that simple interest =\frac{principal\ amount\times rate\times time}{100}

So \frac{x\times 4\times 1}{100}+\frac{(4000-x)\times 3.5\times 1}{100}=150

4x+14000-3.5x=15000

0.5 x=1000

x = 2000

So the principal amount at a rate of 4% is 2000

And principal amount at a rate of 3.5% is 4000-2000 =2000

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