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givi [52]
3 years ago
12

1/2(4x+10)=2 i need to get x

Mathematics
1 answer:
kari74 [83]3 years ago
8 0
First you need to distribute the 1/2 by the numbers in the parentheses
1/2•4x and 1/2•10 which equals
2x+5=10

next, you will need to get the 2x by itself so you would do
2x+5=10
-5=-5
2x=5

finally, you divide the 2 by the 5 so you can get the x by itself
2x divided by 5

the answer is: x=2.5
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Answer:

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Step-by-step explanation:

we know that

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<em>Survey A</em>

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Convert to percentage

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<em>Survey B</em>

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<em>Survey D</em>

\frac{32}{80}=0.4

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Compare the percentages

Surveys B and C have the same percentage

therefore

Surveys B and C show proportional results, because the ratio of the number of teachers that have a second job by the total number of teachers is equal (this number is the constant of proportionality k in a proportional relationship between two variables)

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