3 years ago

224 is what % of 640?

2 answers:

5 0

There is a percent formula for all of these types of percent problems.

It is : is/of = %/100

224 is what % of 640
is = 224
of = 640
% = x
now just sub
224/640 = x/100
cross multiply because this is a proportion
(640)(x) = (224)(100)
640x = 22400
x = 22400/640
x = 35......so 224 is 35% of 640

Tems11 [23]3 years ago

5 0

224/640 x 100% = 35%

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ycow [4]

Hey there :)

Before translating the sentence into mathematics, let r represent 'a number'

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2 times that number = 2r

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* Your equation
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* Solving the equation
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