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Mathematics 19 Online
OpenStudy (anonymous):

Phillip bought 12 used CDs and DVDs. CDs cost $2 each and DVDs cost $3 each. He spent $31 not including tax. How many DVDs did Phillip buy? ///// Answers: 7, 5 , 2 , 10

OpenStudy (moongazer):

I think he bought 2 DVDs.

OpenStudy (anonymous):

thank you :)

OpenStudy (moongazer):

12x2=24 then 31-24=7 then 7/3 = 2.33 then it is 2 DVDs :)

OpenStudy (anonymous):

thanks for showing me how to solve it! it really helps alot.

OpenStudy (anonymous):

Lol, wrong

OpenStudy (anonymous):

7 DVDs, 5 CDs...

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