Mathematics
latinagirl143
5

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.

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