SOLUTION: A bag contains dimes and nickels. There are 18 coins in the bag. The value of the coins is $1.25. How many nickels are in the bag?
Algebra.Com
Question 900567: A bag contains dimes and nickels. There are 18 coins in the bag. The value of the coins is $1.25. How many nickels are in the bag?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
x+y=18,
5*x+10*y=125
x=18-y
5*(18-y)+10*y=125
90-5y+10*y=125
5*y=35
y=7
x=18-y
x=11 at 5 and y=7 at 10
check
11+7=18
5*x+10*y=125
5*11+10*7=125
55+70=125
125=125
ok
RELATED QUESTIONS
A bag contains dimes & nickels. There are 21 coins in the bag. The value of the coins is... (answered by nerdybill)
A bag of coins contains dimes, pennies, and nickels. There are
five more
dimes than... (answered by oberobic)
A bag contains 39 coins, all nickels and quarters. The total value of the coins in the... (answered by MathLover1)
I have a bag that contains 50 coins. The total value of these coins is $1.00. How many... (answered by Edwin McCravy)
a bag of nickels and quarters contains FOUR times as many nickels as quarters. the total... (answered by edjones)
A bag of coins contains nickels, dimes, and quarters. There are a total of 17 coins in... (answered by craigt)
A bag of coins contains nickels, dimes, and quarters. There are a total of 9 coins in the (answered by LarissaRichardson)
There is a bag containing nickels and dimes. There are twice as many dimes as there are... (answered by Maths68)
A bag of coins contains nickels, dimes, and quarters. There are a total of 61 coins in... (answered by Boreal)