Originally posted by JamesScottLet the younger age of John be x
There are two men, John & Peter. John is 2x as old as Peter was when Peter was 2x as old as John. When you add their ages together you get 72.
How old are they?
Originally posted by c1arinetboyx*0.25 + y*0.1 = 4.8
I've been doing problems like these in school recently. Here's one:
A purse containing $4.80 in quarters and dimes has, in all, 30 coins. How many of each coin was there?