SOLUTION: A cash register contains only five dollar and ten dollar bills. It contains twice as many five's as ten's and the total amount of money in the cash register is 660 dollars. How man

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Question 20966: A cash register contains only five dollar and ten dollar bills. It contains twice as many five's as ten's and the total amount of money in the cash register is 660 dollars. How many ten's are in the cash register?
Answer by wuwei96815(245) About Me  (Show Source):
You can put this solution on YOUR website!
This is a two step problem. First, you must write expressions denoting the amount of five and ten dollar bills. Second, you must write an equation that shows the relationship between the expressions and the dollar amount.

x=number of ten dollar bills
2x=number of five dollar bills

$10(x) + $5(2x) = $660
10x + 10x = 660
20x = 660
x = 33

There are 33 $10 bills and 66 $5 bills. I hope that you were able to follow the solution.