SOLUTION: Melissa has 45 coins in dimes and quarters. The total value of the coins is $7.65. How many coins of each kind does she have?

Algebra.Com
Question 575431: Melissa has 45 coins in dimes and quarters. The total value of the coins is $7.65. How many coins of each kind does she have?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = number of dimes
Let = number of quarters
given:
(1)
(2) ( in cents )
----------------
Divide both sides of (2) by
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)


and, since
(1)
(1)
(1)
She has 24 dimes and 21 quarters
check:
(2)
(2)
(2)
(2)

RELATED QUESTIONS

Melissa has 45 coins in dimes and quarters. The total value of the coins is $7.65. How... (answered by josmiceli)
Merlin has 20 coins in quarters and dimes. The total value of the coins is $3.95. How... (answered by stanbon,joyofmath)
Merlin has 20 coins in quarters and dimes. The total value of the coins is $3.95. How... (answered by ankor@dixie-net.com)
mr.chang has 30 coins consisting of dimes and quarters. the total value of the coins is... (answered by solver91311)
Chris has a total of30 quarters and dollar coins the value of her coins is $4.80 how... (answered by ikleyn)
Chris has a total of30 quarters and dollar coins the value of her coins is $4.80 how... (answered by josgarithmetic,ikleyn)
Merlin has 20 coins in quarters and dimes. The total value of the coins is $3.95. How... (answered by josmiceli)
Amy has a collection of coins consisting of quarters and dimes. She has twice as many... (answered by josgarithmetic,ikleyn)
Cookie has 97 coins in her collection – all either nickels, dimes or quarters. If 77 of... (answered by Edwin McCravy)