What's a real world problem involving a percent greater then 100%

Mathematics

1 answer:

AveGali [126]3 years ago

8 0

Buying something that costs more than $1.00 can be an example.

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Prove that 3:8 is equivalent to 12:32

Julli [10]

3 times 4 is equal to 12
8 times 4 is equal to 32
therefore 3:8 is equal to 12:32
hope this helps

3 0

3 years ago

The area of a square is tripled by adding 10 cm to one dimension and 12 cm to the other. Determine the side length of the square

Rina8888 [55]

Area = length *width
A = x²
3x² = (x+10)(x+12)
3x² = x²+10x+12x+120
3x² = x²+22x+120
3x²-3x² = x²+22x+120-3x²
0 = -2x²+22x+120
Factor to solve for x:
-2(x²-11x-60)
(x+4)(x-15)
x = -4 & x = 15 but we can't have a negative length so we eliminate 4. The length of the square is 15 cm.

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3 years ago

Solve by completing the square 4x^2-30=12+10x

natali 33 [55]

16x - 30 = 12 + 10

6x = 42

x = 7

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How to find a volume to a rectangular box

topjm [15]

You multiply length times width times height.

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3 years ago