2 years ago

Solve for x. does anyone know how to do these so i could do them myself

1 answer:

8 0

You use Pythagorus’ theorem to help you

so to find the answer you would do 10^2 - 6^2 and then square root your answer

hope this helps

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Two fewer than a number doubled is the same as the number decreased by 38. if n is "the number," which equation could be used to

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$\displaystyle \\ 
\text{We use the following equation:} \\ \\ 
 \frac{n}{2} = n - 38 \\ \\ 
We solve for n: \\ \\ 
 \frac{n}{2} = n - 38 ~~\Big| \times 2 \\ \\ 
n = 2 \times n - 2 \times 38 \\ \\ 
n = 2n - 76 \\ \\ 
2n - n = 76 \\ \\ 
\boxed{n = 76} \\ \\ 
\text{Verification: } \\ \\ 
\frac{n}{2} = n - 38 \\ \\ 
\frac{76}{2} = 76 - 38 \\ \\ 
\boxed{38 = 38 ~~~ Correct }$

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