25% of what is 8?
75% of what is 48?
40% is what of 60?
10% is what of 6.3?
2007-05-29 08:06:38 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
1) 32 (multiply 32 by .25 to get 8)
2) 64 (multiply 64 by .75 to get 48)
3) 150 (multiply 150 by .4 to get 60)
4) 63 (multiply 63 by .1 to get 6.3)
2007-05-29 08:15:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋
These questions are all of the same form:
A% of X = B
All you have to do is divide by the percentage.
Convert your percentages to decimal before solving. That is, convert 25% to 0.25, 40% to 0.40, etc.
So for the first problem you have
0.25*X = 8
X = 8/0.25
X = 32
The rest are all the same, simply with different numbers
2007-05-29 15:17:29 · answer #2 · answered by dogsafire 7 · 0⤊ 0⤋
Think of it this way....whenever there is 'of' you multiply and whenever there is 'what' its a variable, and 'is' will be equal to, put it altogether...so the first one will be 0.25 x 'y'(variable)= 8 or.. 0.25y = 8..... and the answer will be 32
Hope this helps...you won't get it if we answer for you , so hopefully you can get it now
2007-05-29 15:16:53 · answer #3 · answered by Shika M 3 · 0⤊ 0⤋
The first one becomes 0.25 * x = 8
The second one becomes 0.75 * x = 48
The third one becomes 0.40 * x = 60
and I bet you can figure out the fourth one yourself... just solve for the x'es.
2007-05-29 15:17:06 · answer #4 · answered by atomicjohnson 3 · 0⤊ 0⤋
32
64
150
63
2007-05-29 15:29:54 · answer #5 · answered by Sara K 4 · 0⤊ 0⤋