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mina [271]
2 years ago
7

The value of x is: A. 40 B. 20 C. 13

Mathematics
1 answer:
tangare [24]2 years ago
6 0
Hey there!

Write a proportion. 8/5=32/x. Cross multiply. You get 8x=160. You have to isolate x, so divide each side by 8. X=20. Since x is by itself, you have your answer. The answer is B. Another way to do this is to see how much it takes to get from 8 to 32. You would multiply by 4. So multiply 5 by 4 to get 20.

I hope this helps!
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Simplifying gives us:

 

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Since we now know that x=35, and we know that y=x+4, we now know that:

 

y=(35)+4

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Now that we have both of the numbers, we should check our work to ensure it's correct:

 

Does 39+35=74?      Yes it does.

 

Is 39 (the larger of the two numbers) four more than the smallest number (35)?    Yes it is.

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