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ludmilkaskok [199]
3 years ago
12

NEED THIS ANSWER ASAP!!!!! 4m + 3(n + 7m)

Mathematics
1 answer:
dlinn [17]3 years ago
4 0

Answer:

25m + 3n.

Step-by-step explanation:

Applying the Distrubutive Property will make this easier:

Simplified Version:

4m + 3n + 21m

Adding "M's"

25m + 3n

Thus, the simplified answer is 25m + 3n.

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A = √7 + √c and b = √63 + √d where c and d are positive integers.
mrs_skeptik [129]

Answer:

\displaystyle a:b=\frac{1}{3}

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]

b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]

\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]

From [3]:

9c=d

Replacing into [2]:

b=\sqrt{63}+\sqrt{9c}

We can express 63=9*7:

b=\sqrt{9*7}+\sqrt{9c}

Taking the square root of 9:

b=3\sqrt{7}+3\sqrt{c}

Factoring:

b=3(\sqrt{7}+\sqrt{c})

Find the ration a:b:

\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}

Simplifying:

\boxed{a:b=\frac{1}{3}}

3 0
3 years ago
7,000lbs times what would equal 3.5 tons
PSYCHO15rus [73]
7,000lbs x 1=3.5 tons. 3.5 tons is 7,000lbs.
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Does anyone have the questions answered
nata0808 [166]

Answer:

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Step-by-step explanation:

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50 points for answer
jarptica [38.1K]

Answer:

Step-by-step explanation:

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5 0
3 years ago
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Use the table to find the yearly premiums in each of the following cases.
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