MONEY
Question asked by: shdfdhsu
Asked on: 22 Feb 2009
Use algebra to solve this one like so:
There are 43 coins i a purse.There are some 1-dollar,50-cent and 20-cent coins in it.The total value of these coins is $36.30.How many 50-cent coins are there?
So we write this as:
36.30 = 50x + 20y + z
... then simply solve this to work out the relative number of each.
By: knowitall
Replied at: 22 Feb 2009
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