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Mathematics 19 Online
OpenStudy (pokemon23):

anyone on in math willing to help me in my math hw? @Mathematics

OpenStudy (anonymous):

sure

OpenStudy (pokemon23):

kk

OpenStudy (mimi_x3):

Hm..it depends on the topic :P

OpenStudy (pokemon23):

Bill has 4 times as many quarters as dimes.In all he has $2.20. How many coins of each type does he have?

OpenStudy (pokemon23):

what's the equation?

OpenStudy (pokemon23):

Zarkon can you help me?

OpenStudy (zarkon):

D= dimes Q=quarters Q=4*D .25*Q+.1*D=2.20 .25(4D)+.1*D=2.20 solve for D

OpenStudy (zarkon):

I get 2 dimes and 8 quarters

OpenStudy (zarkon):

.25(4D)+.1*D=2.20 multiply by 100 25(4D)+10D=220 100D+10D=220 110D=220 D=2 Q=4D Q=4(2)=8

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