SOLUTION: can u please help me on this one:42/y=120/100

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Question 175910: can u please help me on this one:42/y=120/100
Found 2 solutions by jim_thompson5910, Alan3354:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

42%2Fy=120%2F100 Start with the given ratio



42=%28120%2F100%29%2Ay Multiply both sides by y


42%2A100=120%2Ay Multiply both sides by 100


4200=120%2Ay Multiply


4200%2F120=y Divide both sides by 120


35=y Reduce.



So the answer is y=35

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
can u please help me on this one:42/y=120/100
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42/y=120/100
42/y=12/10
42/y=6/5
Multiply by 5y
42*5 = 6y
6y = 210
y = 35
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A quicker way is to "cross multiply"
42/y=120/100
42*100 = 120y
y = 35