3 years ago

1:X = X:81 what number can replace X?

Mathematics

1 answer:

anygoal [31]3 years ago

7 0

Multiply 1/x = x/81 by 81x and you get

... 81 = x²

Taking the square root gives

... x = ±9

Either 9 or -9 can replace X to make the proportion statement true.

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3 years ago

Read 2 more answers

SOLVE. <br>1/5x=-10<br><img src="https://tex.z-dn.net/?f=1%20%5Cdiv%205x%20%3D%20%20-%2010" id="TexFormula1" title="1 \div 5x =

Sladkaya [172]

Answer: X = -50

Step-by-step explanation:

1. 1/5x = -10

1/5x = -10

2.Multiply by 1

3.Multiply all terms by the same value to eliminate fraction denominators.

4.Simplfiy

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