SOLUTION: 4 is 40% of x

Algebra.Com
Question 203950: 4 is 40% of x
Answer by RAY100(1637)   (Show Source): You can put this solution on YOUR website!
4=40% *x = .4x
.
4/.4 =x
.
10=x
.
check ,,,.4*10 =4,,,,ok
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