If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Question

asked Mar 6, 2021 217k views

1 Answer

Laalaguer · Answer 1 · 2021-03-10T00:25:58+0000

A number is :

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Three quarters of it means :

$(3)/(4)x \\$

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Decrease by 20 means :

$(3)/(4)x - 20 \\$

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Equals to 82 means :

$(3)/(4)x - 20 = 82 \\$

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What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$(3)/(4)x - 20 = 82 \\$

Plus sides 20

$(3)/(4)x = 82 + 20 \\$

$(3)/(4)x = 102 \\$

Multiply sides by 4

3x = 102 * 4

Divided sides by 3

$x = (102 * 4)/(3) \\$

$x = (102)/(3) * 4 \\$

Simplify

x = 34 * 4

x = 136

So that number is 136 .

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And we're done.

Thanks for watching buddy good luck.

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