84 is 75% of what number?
2 answers:
112
x * 75/100=84
<span>75x/100=84 </span>
<span>75x=8400 </span>
<span>x=112</span>
100% = 1
75% = 0.75 = 3/4
3/4x = 84 | *4
3x = 336 | /3
x = 112
Or you can do like this:
3/4x = 84 | /3
1/4x = 28
3/4x + 1/4x = 84 + 24
4/4x = 112
x = 112
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