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(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if 4% of a number is z, then what is 50% of the number?
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Let the number be "x"
0.04x = z
x = 100z/4 = 25z
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Then 0.50x = 0.50*25z = 12.5z
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Cheers,
Stan H.

Answer by Mathtut(3670) About Me  (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
:
highlight%28.5x=12.5z%29