Bo has a collection of 175 dimes and nickels. The collection is worth $13.30. How many dimes and nickels does he have?

Question

I don't get it cause you can't make it with 175 coins

Answer 1

Hi Eric, let n represent the nickels and d represent the dimes. Set up two equations and solve.

 

Equation 1, number of coins:

 

n  +  d = 175

 

Equation 2, value of coins:

 

.05n + .10d = 13.30

 

Solve:

 

     n   +      d  = 175

.05n   +  .10d =   13.30

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You can solve this by substitution or elimination to find the values for n and d.

 

Questions?