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? 10 7 5 2

he bought 7. by using the process of elimination if he buys 10 DVD's he would have spent $34 (including CD's) with 5 DVD's he spends $29 (including CD's) with 2 DVD's he spends $26 (including CD's) so with 7 DVD's that is $21 and with 5 CD's that is $10 and $21 + $10 is $31. there ya go, yo boy comin in the clutch.

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psm22415 psm22415 · Answer 2 · 2021-11-27T14:22:50+01:00

He spent $31, not including tax, Philips buys 7 DVDs .

Given that,

Total no. of CDs and DVDs is = 12

CDs cost each = $2

And DVDs cost $3 each.

He spent $31, not including tax.

We have to find

How many DVDs did Phillip buy.

According to the question,

By using the elimination method,

If he buys 10 DVD's = (10).(3) + tax = $30 , he would have spent $34 (including CD's) with,

5 DVD's he spends = (5).($3) + (5).($2) + tax = $29 (including CD's) with

2 DVD's he spends = (2).($3) + (2).($2) + tax = $10 (including CD's)

So, with 7 DVD's = (7).($3) = 21 that is $21 and with 5 CD's = (5).(2) = 10 that is $10 and $21 + $10 is $31.

Hence, Philips required to buy 7 DVDs .

For more information about Elimination method click the link given below.

https://brainly.com/question/12341025