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3 years ago

A=1/2w(b+c) solve for c

Mathematics

1 answer:

kaheart [24]3 years ago

3 0

9514 1404 393

Answer:

c = 2A/w -b

Step-by-step explanation:

Multiply by the inverse of the coefficient of the parentheses.

$A=\dfrac{w}{2}(b+c)\\\\\dfrac{2A}{w}=b+c\\\\\boxed{c=\dfrac{2A}{w}-b} \qquad\text{subtract $b$}$

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There are 42 female performers in a dance recital. The ratio of men to women is 4:7. How many men are in the dance recital?

marusya05 [52]

Answer:

24

Step-by-step explanation:

The first thing I did was divide 42 by 7 to get the equivilant for 1.

42 ^ 7 = 6

So,

1 = 6

This means that all you have to do to get the amount of men is to multiply 4 by 6.

4 * 6 = 24

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3 years ago

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Bogdan [553]

Answer:

$24=4k$

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Step-by-step explanation:

For this exercise it is important to remember that "Times as great as" indicates multiplication.

Therefore, "4 times as great as" can be expressed as following:

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Knowing this, you can write the following equation:

$24=4k$

In order to solve for "k", you can divide both sides of the equation by 4. Then, you get the following result:

$\frac{24}{4}=\frac{4k}{4}\\\\k=6$

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3 years ago

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Answer:

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Step-by-step explanation:

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