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3 years ago

I believe the answer is 61.67 am I right?

Mathematics

1 answer:

disa [49]3 years ago

4 0

Yes! You are correct! When adding up all three phone bills from each month and dividing it by 3, I did indeed get 61.67. Hope this helped! Have a good day! :)

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What is 45 out of 50 as a percentage?. Single choice.<br><br><br><br>80%<br><br>90%<br><br>70%

rusak2 [61]

Answer:

$90\%$

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3 years ago

What is the simplified form of the expression the quantity x squared minus 4x minus 21 end quantity divided by 4 times the quant

ExtremeBDS [4]

The simplified form of the given expression $\frac{x^2-4x-21}{4(x+3)}$ is $\frac{x-7}{4}$ .

<h3>How to simplify a fractional expression?</h3>

The steps to simplify a fractional expression are:

Factorize the expressions both in the numerator and the denominator using different methods
Remove the common terms in the numerator and denominator
Thus, the simplified expression will be obtained.

<h3>Calculation:</h3>

The given expression is $\frac{x^2-4x-21}{4(x+3)}$

Factorizing the numerator:

x² - 4x - 21 = x² - 7x + 3x - 21

= x(x - 7) + 3(x - 7)

= (x - 7)(x + 3)

Then,

$\frac{x^2-4x-21}{4(x+3)}$ = $\frac{(x-7)(x+3)}{4(x+3)}$

common factor (x + 3) is canceled out from both the numerator and the denominator

So,

$\frac{x^2-4x-21}{4(x+3)}$ = $\frac{x-7}{4}$

Therefore, the simplified expression is $\frac{x-7}{4}$ .

Learn more about simplifying an expression here:

brainly.com/question/13742517

#SPJ1

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2 years ago