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=17-D

and 10D+25Q=275

or 10D+25(17-D)=275

solve for D, then solve for Q

- math ALGEBRA 1 PLEASE HELP! -
**Anonymous**, Monday, January 28, 2013 at 11:38pm
Distribute 25

10D+425-25D=275

Add like variables

425-15D=275

Subtract 425

-15D=-150

Divide Each Side by -15

D=10

Plug D into equation to solve for Q.

Q=17-10

Q=7

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