SOLUTION: Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7 more nickels than dimes. How many quarter does Warren have? Thank you.

SOLUTION: Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7 more nickels than dimes. How many quarter does Warren have? Thank you.

Algebra.Com

Question 108059: Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7
more nickels than dimes. How many quarter does Warren have?
Thank you.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
let x=dimes, so x+7=nickels and 40-(2x+7)=quarters ... 10x+5(x+7)+25(40-(2x+7))=405

10x+5x+35+1000-50x-175=405 ... -35x=-455
RELATED QUESTIONS
Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7 more... (answered by stanbon)

Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7 more... (answered by nerdybill)

Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7 nore nickels (answered by ikleyn)

warren has 40 coins (all nickels, dimes, and quarters) worth 4.05. He has 7 more nicles... (answered by amoresroy)

pg. 129 problem 13 How do you solve this prblem? Warren has 40 coins (all nickels,... (answered by stanbon)

how do you solve this word problem? please help! Warren has 40 coins (all nickels,... (answered by scott8148)

Warren has 40 coins (all nickels, dimes, and quarters) worth $4.05. He has 7 more... (answered by ankor@dixie-net.com)

Warren has 40 coins (all nickels, dimes and quarters) worth $4.05. He has 7 more nickels (answered by stanbon)

Warren has 40 coins; nickels dimes and quarters worth $4.05. He has seven more nickels... (answered by ankor@dixie-net.com)