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3 years ago

The graph shows the number of copies a copier can make. What is the unit rate?

Mathematics

2 answers:

zepelin [54]3 years ago

5 0

Can u show the graph so i can answer

lina2011 [118]3 years ago

4 0

I think it D) 25 because if u look at the graph it show 75 copies number in 3 minutes.

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What is the greatest common factor of 250, 45, and 30?

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I'm pretty sure that it is 3.5 or even 45

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3 years ago

Which pair shows equivalent expressions?

Dmitry_Shevchenko [17]

Which pair shows equivalent expressions?

A.2(2/5x + 2)=2 2/5x + 1

B.2(2/5x + 2)=4/5x + 4

C.2(2/5x + 4)=4/5x + 2

D.2(2/5x + 4)=2 2/5x + 8

Solution:

$2(\frac{2}{5}x + 2)$

Let us distribute 2 inside the parenthesis.

That is, we use distributive property:

a(b+c)=ab+ac

$2(\frac{2}{5}x + 2) =\frac{2*2}{5}x+2*2$

So, $2(\frac{2}{5}x + 2) =\frac{4}{5}x+4$

Answer:Option (b)

$2(\frac{2}{5}x+4)$

Applying distributive property, a(b+c)=ab+ac

$2(\frac{2}{5}x+4) =2*\frac{2}{5} x+2*4$

$2(\frac{2}{5}x+4) =\frac{2*2}{5} x+2*4$

$2(\frac{2}{5}x+4) =\frac{4}{5} x+8$

So, Option (B) is correct.

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Which relationships have the same constant of proportionality between Y and as the equation Y=5/2 X

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Answer:

A coefficient is an integer that is written along with a variable or it is multiplied by the variable. For example, in the term 2x, 2 is the co-efficient.

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Step-by-step explanation:

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