You have one dollar bills and five dollar bills totaling 45 dollars.You have 4 times as many one dollar bills as you do five dollar bills. How many of each type of bill do you have?
d = # dollar bills = 4 v value = 4v
v = # 5 dollar bills value = 5v summed, the values = $ 45
4v + 5 v = 45
9v = 45
v = 5 five $5 bills + 20 $1 bills = $ 45