3 years ago

Two number with the sum of 123 and the difference of 35

Mathematics

2 answers:

ExtremeBDS [4]3 years ago

8 0

Answer:

ima guess x+y=123

x-y=7

svp [43]3 years ago

7 0

Answer:

2x + 123 - 35

I could wrong, but I'm pretty sure this is correct

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Sergio039 [100]

I believe it's $\sqrt[12]{2}$

Hope I helped! ( Smiles )

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3 years ago

If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.

Ksivusya [100]

Based on the calculations, the unknown number is equal to $\frac{-45}{7}$

Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

$21 +x$

Multiplying the result by 3:

$3\times (21+x)$

84 more than two-thirds of the unknown number:

$\frac{2x}{3} +84$

Equating the equations, we have:

$3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84$

Cross-multiplying, we have:

$43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}$

Read more on word problems here: brainly.com/question/13170908

5 0

2 years ago

Show work please thank you

Alenkinab [10]

Hey there!:)

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Answer:

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Step-by-step explanation:

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3 years ago

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