SOLUTION: A bag contains dimes & nickels. There are 21 coins in the bag. The value of the coins is $1.70. How many of each coin is in the bag?

Question 451523: A bag contains dimes & nickels. There are 21 coins in the bag. The value of the coins is $1.70. How many of each coin is in the bag?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
A bag contains dimes & nickels. There are 21 coins in the bag. The value of the coins is $1.70. How many of each coin is in the bag?
.
Let x = number of dimes
the
20-x = number of nickels
.
.10x + .05(20-x) = 1.70
.10x + 1-.05x = 1.70
.05x + 1 = 1.70
.05x = .70
x = 14 (dimes)
.
nickels
20-x = 20-14 = 6

RELATED QUESTIONS
A bag contains dimes and nickels. There are 18 coins in the bag. The value of the coins... (answered by richwmiller)

There is a bag containing nickels and dimes. There are twice as many dimes as there are... (answered by Maths68)

A bag contains 15 coins. Each coin is a penny, nickel, dime or quarter. The total value... (answered by josgarithmetic)

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 contains 39 coins, all nickels and quarters. The total value of the coins in the... (answered by MathLover1)

a bag of nickels and quarters contains FOUR times as many nickels as quarters. the total... (answered by edjones)

A bag of coins contains dimes, pennies, and nickels. There are five more dimes than... (answered by oberobic)

A bag contains nickels and quarters. There are 6 more nickels than quarters. The total... (answered by nerdybill)

A bag of coins contains nickels, dimes, and quarters. There are a total of 17 coins in... (answered by craigt)