SOLUTION: A bank loaned out ​$20,000 ​, part of it at the rate of 6 % per year and the rest at 14 % per year. If the interest received in one year totaled ​$2000

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Question 1119394: A bank loaned out ​$20,000
​,
part of it at the rate of 6 %

per year and the rest at 14 %

per year. If the interest received in one year totaled ​$2000
​,
how much was loaned at 6 % question mark

Answer by Theo(13342)   (Show Source): You can put this solution on YOUR website!
x = amount loaned at 6%.
y = amount loaned at 14%.

x + y = 20,000

.06 * x + .14 * y = 2000

these 2 equations need to be solved simultaneously.

multiply both sides of the first equation by .06 and leave the second equation as is to get:

.06x + .06y = 1200
.06x + .14y = 2000

subtract the first equation from the second to get:

.08y = 800

solve for y to get y = 800/.08 = 10,000.

that makes x = 10,000.

x + y = 20,000 so that part checks out.

.06 * 10,000 + .14 * 10,000 = 2,000 so that part checks out as well.

your solution is that 10,000 was loaned out at 6%.






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