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3 years ago

Suppose you're given the formula P = 9m – 3n. If you know that n is 1⁄3 of m, how could you rewrite this formula?

Mathematics

2 answers:

ratelena [41]3 years ago

8 0

Answer:

Option C - $P=8m$

Step-by-step explanation:

Given : Formula $P=9m-3n$ If you know that n is $\frac{1}{3}$ of m.

To find : How could you rewrite this formula?

Solution :

Step 1 - Write the formula,

$P=9m-3n$

Step 2 - Substitute, $n=\frac{1}{3}m$

$P=9m-3(\frac{1}{3}m)$

Step 3 - Solve,

$P=9m-m$

$P=8m$

Therefore, The formula can be re-write as $P=8m$

So, Option C is correct.

algol133 years ago

4 0

Answer:

This problem is very easy. Start with the formula given, i.e., n=3m-2l. Now, use the fact that you are told that l = m+2 and rewrite your original formula as

n = 3m -2(m+2).

Simple algebraic manipulations give n = 3m-2m - 4 = m-4. So the answer is (A).

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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