let Y be 10% of a number. What is 50% of the number? Write your answer in terms of Y.
B bbb732k6 New member Joined Oct 5, 2011 Messages 4 Oct 5, 2011 #1 let Y be 10% of a number. What is 50% of the number? Write your answer in terms of Y.
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,339 Oct 5, 2011 #2 Better get started. This is an eyeball problem. You just look at it and write down the answer. 5Y.
B bbb732k6 New member Joined Oct 5, 2011 Messages 4 Oct 5, 2011 #3 i knew the answer is 5y, at least i thought it, yet they want work to be shown.
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,339 Oct 5, 2011 #4 That's the point of an eyeball problem. It's not productive to write it down. Anyway... How about a proportion? \(\displaystyle \frac{0.10}{0.50}=\frac{Y}{Z}\) -- Solve for Z. Last edited: Oct 6, 2011
That's the point of an eyeball problem. It's not productive to write it down. Anyway... How about a proportion? \(\displaystyle \frac{0.10}{0.50}=\frac{Y}{Z}\) -- Solve for Z.
