27-01-2019
Mathematics

contestada

An executive invests $21000, some at 7 % and the rest at 6%. If he receives an annual return of $1390, how much is invested at each rate?

Respuesta :

KelliFayWolfe KelliFayWolfe

27-01-2019

Answer:

Step-by-step explanation:

P. R. I

X. .07. .07X

21000-x. .06. .06(2100-x)

2100. 1390

.07x + .06(21000-x) = 1390

.07x + 1260 - .06x = 1390

.01x = 130

X=13,000 @7%

8000 @ 6%

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