4 years ago

Anyone need help with multiplying decimals I got u

Mathematics

1 answer:

const2013 [10]4 years ago

7 0

I know u gonna use calculator girl.

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Mark had 14 problems wrong on his test. his score was 72% correct. how many problems were on the test?

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Let x = number of problems on test
If he got 14 wrong, then x - 14 is the number correct.
$\frac{x-14}{x} = .72
$
x - 14 = .72x
.28x - 14 = 0
.28x = 14
x = 50

The test consisted of 50 problems.

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4 years ago

What is the answer to this problem:

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Answer:

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a crate of mass 50kg is dragged by an engine along a horizontal floor through distance of 6m in 3s. calculate the power of the e

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Mary is 1 9/11 ft tall, whereas Anne is 1 7/10 ft tall. How much taller in feet is Mary than Anne? *

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Answer:

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