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3 years ago

Solve the formula c = pie d for d

Mathematics

2 answers:

Aleks04 [339]3 years ago

6 0

Answer:

$\large\boxed{d=\dfrac{C}{\pi}}$

Step-by-step explanation:

It's the formula of a circumference:

$C=\pi d$

d - diameter

Solve for d:

$\pi d=C$ <em>divide both sides by π</em>

$d=\dfrac{C}{\pi}$

Naddik [55]3 years ago

6 0

Answer:

he is right. you need to divide both sides by pie which is 3.14

Step-by-step explanation:

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3 years ago

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3 years ago

10. Expand and Simplify (r+3) (r+11)=

mihalych1998 [28]

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Step-by-step explanation:

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3 years ago

If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.

Ksivusya [100]

Based on the calculations, the unknown number is equal to $\frac{-45}{7}$

Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

$21 +x$

Multiplying the result by 3:

$3\times (21+x)$

84 more than two-thirds of the unknown number:

$\frac{2x}{3} +84$

Equating the equations, we have:

$3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84$

Cross-multiplying, we have:

$43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}$

Read more on word problems here: brainly.com/question/13170908

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3 years ago

Solve the formula c = pie d for d​

Solve the formula c = pie d for d