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2 years ago

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Mathematics

1 answer:

maw [93]2 years ago

8 0

9514 1404 393

Answer:

$3000 at 8%
$4000 at 6%

Step-by-step explanation:

Let x represent the amount invested at 8%. Then the total interest earned is ...

0.06(7000 -x) +0.08x = 480

420 +0.02x = 480 . . . . . . . . . eliminate parentheses

0.02x = 60 . . . . . . . . . . subtract 420

x = 60/0.02 = 3000 . . . . . divide by the coefficient of x

$3000 was invested at 8%; $4000 was invested at 6%.

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vivado [14]

Answer:

a. 10 inches

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Step-by-step explanation:

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3 years ago

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Eduardwww [97]

Answer:

A choice

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