i am having trouble finding this: 50 is 40% of what number?
and 7 is what percent of 105?

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(2) Answers

Shanae920

125 i believe as 50 x 2.5 (because to get 100 out of 40 you have to times it by 2.5) and that'll be 125 and you can check it = find 10% (12.5) and then times by 4 to get 40% (12.5x4=50)

Llama11

a). 50 = 40 % of what?
Let the what be x
50 = (40/100)*x
50 = 40x/100
40x = 50*100
x = (50*100)/40 = 125
Therefore 50 is 40% of 125.
b). 7 is what percent of 105?
Let the what percent be x%
7 = x% * 105
7 = (x/100) * 105
7 = 105x/100
105x = 7*100
x = (7*100)/105 = (20/3)
(20/3)%
Therefore 7 is (20/3)% of 105.