SOLUTION: Please helpppp!!!!!
suppose the money box in a vending machine contains 146 coins consisting ofdimes and quarters. If the total value of coins in the box is $24.50, how many qu
Algebra.Com
Question 28297: Please helpppp!!!!!
suppose the money box in a vending machine contains 146 coins consisting ofdimes and quarters. If the total value of coins in the box is $24.50, how many quarters are inside the box?
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
Let number of dimes be x
Let number of quarters be y
x+y=146
y=146-x (subsitution)
Dime value x 100 = 10
Quarter value x 100 = 25
Total value x 100 = 2450
10x+25y=2450
10x+25(146-x)=2450
10x-25x+3650=2450
-15x=-1200
x=80
y=146-80
y=66
Hence, there were 80 dimes and 66 quarters.
Paul.
RELATED QUESTIONS
The coin box of a vending machine contains 6 times as many quarters as dimes. If the... (answered by theidiot)
The coin box of a vending machine contains 6 times as many quarters as dimes. If the... (answered by rajagopalan)
The coin box of a vending machine contains 6 times as many quarters as dimes. If the... (answered by richwmiller)
The coin box of a vending machine contains 6 times as many quarters as dimes. If the... (answered by Alan3354)
the coin box of a vending machine contains $4.55 in dimes and quarters. If there were 23... (answered by Fombitz)
A vending machine contains $22.15. The machine contains 195 coins, which consist of only... (answered by solver91311)
A vending machine contains a total of 104 coins. It contains twice as many nickels as... (answered by Boreal)
do you know what the answer to this problem is ? The coin box of a vending machine... (answered by stanbon)
the coin box of a vending machines contains 6 dimes as many quarters as dimes. If the... (answered by ikleyn)