SOLUTION: When 40 percent of "Y" is 15, what is 20 percent of 2y

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Question 402876: When 40 percent of "Y" is 15, what is 20 percent of 2y
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
"40 percent of "Y" is 15" means that 0.4y+=+15. Simply divide both sides by 0.4 to get y=15%2F0.4=37.5. So y=37.5


This then means that 20% of 2y is 0.2%282y%29=0.4y=0.4%2837.5%29=15


Note: you can skip the first step if you can see that 0.2(2y)=0.4y