SOLUTION: Bertha has 33 coins in her pocket totaling $5.25. If she only has nickles and quarters, how many of each type of coin does she have

Question 434946: Bertha has 33 coins in her pocket totaling $5.25. If she only has nickles and quarters, how many of each type of coin does she have
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
nickels x Numbers
quarters ------------ y Numbers
x + 1 y = 33 .............1
x + 25 y = 525 .............2

multiply (1) by -25
x -25 y = -825
x 25 y = 525

x=-300
-20
= 15 = 15.00 nickels
x in (1)
x + y = 33
+ y = 33
y = 33 -15
y = 18
y = 18 = 18.00 quarters

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