Levi H.
asked • 12/13/21donald invested some money at 6%. he also invested twice that amount at 5%. if the total annual income was $640, how much did he invest at each rate?
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1 Expert Answer
Raymond B. answered • 12/13/21
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5
(2)
Math, microeconomics or criminal justice
6x + 5(2x) = 64000 (multiply .06 and .05 by 100 and 640 by 100)
16x = 64000
x =64000/16 = $4000 at 6%
2x = $8000 at 5%
.06(4000) + .05(8000) = 240 +400 = 640
Levi H.
the answer is 240 and 400?
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12/13/21
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Levi H.
I need it now12/13/21