SOLUTION: A pile of 42 coins worth $4.90, consisting of nickels and quarters. How many nickels are there?

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Question 1003110: A pile of 42 coins worth $4.90, consisting of nickels and quarters. How many nickels are there?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
zA pile of 42 coins worth $4.90, consisting of nickels and quarters. How many nickels are there?
let x=number of nickels
42-x=number of quarters
.05x+.25(42-x)=4.90
.05x+10.5-.25x=4.90
.20x=5.60
x=28
42-x=14
number of nickels=28
number of quarters=14