Jessica's bank contains 18 quarters and dimes, of which q are quarters. Find the total value of the coins in dollars.

Question

anonymous · Answer

@hello1213 
Is it 18 Quarters and Dimes combined ??

anonymous · Answer

yes

anonymous · Answer

i got confused to with the way they worded it but yes combined there are 18 quarters and dimes.

anonymous · Answer

One dime = $ 0.1
One Quarter = $ 0.25
No. of Quarters = q
No. of Dimes = 18-q

anonymous · Answer

It seems to be One Equation with two variables :S

anonymous · Answer

so how would i set this up .... would i say q + 18-q= 18

anonymous · Answer

wait nevermind that would get me to 18=18

anonymous · Answer

So Cost of q quarters = 0.25q
Cost of 18-q dimes = 1.8 - 0.1q
Total Cost = 1.8 - 0.1q + 0.25q = 1.8 + 0.15q

We have two variables here, q and the total cost.

anonymous · Answer

ohhh wow thats easier then i thought... thank you!

anonymous · Answer

:) Your Welcome