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maria [59]
3 years ago
5

Simplify 2(x-4)+7(x+4) A. 9x-6 B.9x-4 C.9x+6

Mathematics
1 answer:
MrRissso [65]3 years ago
5 0
2(x - 4) + 7(x + 4)
(2x - 2 • 4) + (7x + 7 • 4)
9x + 20

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What is -2 1/4 + 5 1/2 ?
Fofino [41]
To first find the answer to this, let's find a common denominator between each fraction. The denominator is the bottom number of a fraction.
To find the common denominator, let's factor out each of our denominators 5 times to see if they have a common number.
4: 4, 8, 12, 16, 20
2: 2, 4, 6, 8, 10
They both appear to have the smallest common denominator of 4, so let's use 4.

We already have 1/4 with a denominator of 4, but not 1/2.
2 x 2 = 4, so multiply the numerator and the denominator of 1/2 by 2.
1 x 2 = 2
2 x 2 = 4
Your new fraction is 2/4.

Our expression now is:
-2 1/4 + 5 2/4
or (in simpler terms)
5 2/4 - 2 1/4

Subtract the fractions first.
2/4 - 1/4 = 1/4

Now subtract the whole numbers.
5 - 2 = 3

You are left with:
3 1/4

I hope this helps!
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Flauer [41]
The answer is 3.375
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Gelneren [198K]

Answer:

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Step-by-step explanation:

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How can I find the exact distance between the points(√7,-√2)and (4√7,5√2)
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A 16 oz bottle of fruit punch costs $2.40. A 24 oz. bottle of fruit punch costs $3.84. Which size costs less per ounce?
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