Posted by alex on Monday, January 28, 2013 at 10:36pm.
You have $2.75 in dimes and quarters, and you have a total of 17 dimes and quarters. How many of each type of coin do you have?

math ALGEBRA 1 PLEASE HELP!  bobpursley, Monday, January 28, 2013 at 10:56pm
D+Q=17
or Q=17D
and 10D+25Q=275
or 10D+25(17D)=275
solve for D, then solve for Q

math ALGEBRA 1 PLEASE HELP!  Anonymous, Monday, January 28, 2013 at 11:38pm
Distribute 25
10D+42525D=275
Add like variables
42515D=275
Subtract 425
15D=150
Divide Each Side by 15
D=10
Plug D into equation to solve for Q.
Q=1710
Q=7
Answer This Question
Related Questions
 word problem money  you have $ 1.55 in dimes and quarters. find all the ...
 8th grade math  Matt has twice as many quarters as dimes in his coin collection...
 math  a childs bank contains $6.30 in dimes and quarters. there are twice as ...
 MATH (PLease HELp)  Sally has three times as many dimes as nickels and twice as...
 6 grade math  Please I need help on just the set up using a guess and check ...
 algebra  Jim has some nickels, dimes and quarters worth $5.30. There are five ...
 Algebra  Christina has three more quarters than dimes. The total value of the ...
 math  Ashley had an equal number of dimes and quarters until she gave 15 ...
 Math  A woman has twice as many dimes as quarters in her purse. If the dimes ...
 algebra  Mary has $4.00 in nickels, dimes, and quarters. If she has twice as ...
More Related Questions