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15 % of what number is 21 thanks :)
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15 % of what number is 21 thanks :)
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Jan 4, 2018
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15 % of what number is 21 thanks :)
Mathematics
middle-school
Razakhel
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The answer is 140 that should help tou
EightyEight
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Jan 7, 2018
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EightyEight
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7
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15% of x = 21
Set up proportions.
15/100 = 21/x
Cross multiply the numbers (15 by x, 21 by 100).
Divide 2100 by 15x to get x.
2100/15 = 140
X is 140.
Dalelane
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Jan 10, 2018
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Dalelane
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