Question 535010: Paula has twice as many dimes as pennies and three times as many nickels as pennies.She has $1.80 in all. How many coins does she have? Answer by ptaylor(2198) (Show Source):
You can put this solution on YOUR website! Let x=number of pennies
2x=number of dimes
3x=number of nickels
Lets deal in pennies
x+10(2x)+5(3x)=180
x+20x+15x=180
36x=180
x=5------------------------number of pennies
2*5=10------------------------number of dimes
3*5=15-----------------------number of nickels
CK
5+10*10+5*15=180
5+100+75=`180
180=180
Hope this helps--ptaylor
