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Aleksandr-060686 [28]
3 years ago
8

When 12 is decreased by twice a number, the result is -14. Find the number.

Mathematics
1 answer:
Talja [164]3 years ago
4 0

Answer:

-13

Step-by-step explanation:

Twice a number is 2h (h is the variable) so the equation is 12-2h=-14 and - 13 times 2 is -26 so the equation is now 12-26=-14

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On a map, 2 inches represents an actual distance of 64 miles. Towns A and B are 608 miles apart. Find the distance between the t
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Step-by-step explanation:

On the map. 2 inches represent an actual distance of 64 miles.

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6 0
3 years ago
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The perimeter of a rectangle is 48 m. The area of the rectangle is 128 square meters. Find the dimensions of the rectangle.
Andreas93 [3]

Answer:

l = 16, w = 8

Step-by-step explanation:

Let l = length

Let w = width

Area = w * l

128 = w * l

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48 = 2w + 2l

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Multiply everything by l

48l = 256 + 2l^2

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(l-16)(l-8)= 0

L = 16

L = 8

If you try them out, and test it, l = 16 would work:

2(16) + 256/16 = 48

32 + 16 =48

16 * 128/16 = 128

16 * 8= 128

128 = 128

Since I'm not sure if you are in advanced math or not, I will do it simple with guess and check

Try w is

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3 years ago
Brainliest help please
anzhelika [568]

Answer:

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Step-by-step explanation:

brainliest???

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