# SOLUTION: if 4% of a number is z, then what is 50% of the number?

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 Question 175753: if 4% of a number is z, then what is 50% of the number?Found 2 solutions by stanbon, Mathtut:Answer by stanbon(57347)   (Show Source): You can put this solution on YOUR website!if 4% of a number is z, then what is 50% of the number? - Let the number be "x" 0.04x = z x = 100z/4 = 25z ------------------- Then 0.50x = 0.50*25z = 12.5z ===================================== Cheers, Stan H. Answer by Mathtut(3670)   (Show Source): You can put this solution on YOUR website!4%=.04 and 50%=.5 : .04x=z : x=z/.04 : now take 50% of each side : .5x=.5z/.04=12.5z :