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54 is 75% of
I need to showwork so I need help with find the whole from a precent can u show me how u get the answer
75% of x: [tex]75 \% \ of \ x=75\% \times x= \frac{75}{100}x=\frac{3}{4}x[/tex]
75% of x is (3/4)x and 75% of x is 54. Set (3/4)x equal to 54: [tex]\frac{3}{4}x=54 \\
x=54 \times \frac{4}{3} \\
x=\frac{54}{3} \times 4 \\
x=18 \times 4 \\
x=72[/tex]
use the IS over OF:IS/OF next set up a proportion: IS/OF=%/100 since 54 is before IS therefore it is the "IS". And 75 is the % .We don't know what is OF so,we replace it with "X" it will be something like this: 54/X = 75/100 and then cross multiply, 54(100)=5400 and 75(x)=75x so 5400=75x divide each side by 75 5400/75=72 and that's your answer,72.
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