Question 201312

Let x=number of nickels
Then x+6=number of dimes
And 3(x+6)=number of quarters
Now lets deal in pennies
5x+10(x+6)+25*3(x+6)=1140  get rid of parens and simplify
5x+10x+60+75x+450=1140  collect like terms
90x+510=1140  subtract 510 from each side
90x=1140-510=630  divide each side by 90
x=7-------------number of nickels
x+6=7+6=13-------------number of dimes
3(x+6)=3*13=39-----------number of quarters

CK
5*7+10*13+39*25=1140
35+130+975=1140
1140=1140

Hope this helps---ptaylor