SOLUTION: A box contains 18 coins of nickels and quarters. How many quarters and nickels must be in the box so that it contains $3.30? I have to write an equation first. Thanks
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Question 1031885: A box contains 18 coins of nickels and quarters. How many quarters and nickels must be in the box so that it contains $3.30? I have to write an equation first. Thanks Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website!
A box contains 18 coins of nickels and quarters.
let n be the number of nickels
q be the number of quarters
n+q=18..............................(1)
5n+25q=330
/5
n+5q=66...............................(2)
subtract the equations
4q=48
q=12
So
n= 6
