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3 years ago

Julio is making brownies for the school bake sale.

Mathematics

1 answer:

mel-nik [20]3 years ago

7 0

All of them Are correct, assuming this is the recipe.

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simplify the following expression: (x+7/4x) + (5/x-8) I also attached a photo of the problem if you get confused on how I typed

Gnoma [55]

Answer:

$\frac{x^{2} + 19x - 56}{4 {x}^{2} - 32x}$

Step-by-step explanation:

Start by making the denominators of both fraction the same. This can be done by multiplying one fraction's denominator by the other.

After simplifying and combining the two fractions together, check if the numerator can be factorised such that there is a common factor in the denominator and numerator. In this case, the numerator cannot be factorised.

Lastly, expand the denominator.

$\frac{x + 7}{4x} + \frac{5}{x - 8}$

$= \frac{(x + 7)(x - 8)}{4x(x - 8)} + \frac{5(4x)}{4x(x - 8)}$

$= \frac{x(x) + x( - 8) + 7(x) + 7( - 8) + 20x}{4x(x - 8)}$

$= \frac{ {x}^{2} - 8x + 7x - 56 + 20x }{4x(x - 8)}$

$= \frac{ {x}^{2} + 19x - 56}{4x(x - 8)}$

$= \frac{ {x}^{2} + 19x - 56}{4 {x}^{2} - 32x}$

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2 years ago

Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the test? Round to the near

Free_Kalibri [48]

Answer:

25 questions

Step-by-step explanation:

84%*x = 21

-simplify-

0.84 *x = 21

Divide both sides by 0.84 than...

you get x = 25

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3 years ago

Evaluate 5x2–3(x–2)+x for x=3

Darina [25.2K]

10 (assuming you meant 5 TIMES 2

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3 years ago

Read 2 more answers

Richard receives a paycheck twice each month. Here’s a copy of one of his pay statements. If there are 2 paydays per month, what

iogann1982 [59]

For the answer to the question above asking what is Richard’s monthly net income if <span>Richard receives a paycheck twice each month. Here’s a copy of one of his pay statements. If there are 2 paydays per month?
The answer for this is first solved for his Net Pay then you can multiply it by two so that you can get his monthly net income.</span>

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3 years ago

Please Help!!!

vaieri [72.5K]

I DON'T UNDERSTAND MATH ANYMORE!!!!!!!!

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3 years ago