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lozanna [386]
3 years ago
10

Simplify this variable expression -5b + 7a - 7b + 12a

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
6 0
-12b + 19a

To get this answer, you need to combine like terms or those with the same variable.

Combine both terms with b and both terms with a to come up with the final answer.

Hope this helps!
Dafna1 [17]3 years ago
3 0

The answer would be:

-5b - 7b + 7a + 12a

-12b + 19a


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Find the volume of the cylinder in terms of pi h = 6 in. and r = 3 in. A 54π in.3 B108π in.3 C324π in.3 D 27π in.3
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Answer:

Option A. 54\pi\ in^{3}

Step-by-step explanation:

we know that

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V=\pi r^{2}h

where

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we have

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substitute

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Mashcka [7]
Short answer:
25 inches is the perimeter of the larger rectangle



Long answer:
Imagine that you have a rectangle where every single side is 1 inch long. The total perimeter of the card is 4 inches, 1+1+1+1. The total perimeter is 4 inches.

Now imagine that you have a larger rectangle which is 1.25 times as wide and long as the smaller rectangle. In other words each side of the larger rectangle is 1.5 inches long. The perimeter of the larger card is 1.25+1.25+1.25+1.25. Because each 1 in the original equation was multiplied by 1.25. The perimeter of your larger rectangle is 5 inches.

Turn that into an equation. 5 inches equals 4 inches times 1.25. In other words, (larger rectangle perimeter) equals (smaller rectangle perimeter) times 1.25

Plug in numbers. You get (Larger rectangle perimeter) equals 20×1.25. Solve that and you get 25. 25 is the answer
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Answer:

25 days

Step-by-step explanation:

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