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OpenStudy (anonymous):
Blake has a total of 64 DVD's and CD's. If the number of CD's is eight more than three times the number of DVD's, how many DVD's does he have?
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OpenStudy (anonymous):
is it 14?
OpenStudy (anonymous):
LET: C - NO. OF CD --------D - NO. OF DVD C + D = 64 EQ.1, C = 64 - D C = 3D + 8 EQ. 2 EQUATE EQ.1 AND 2 64 -D = 3D + 8 SOLVING FOR D = ?
OpenStudy (anonymous):
50 cd's and 14 dvd's
OpenStudy (anonymous):
right?
OpenStudy (anonymous):
= 14 NO. OF DVD CORRECT!!
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OpenStudy (anonymous):
Awesome, thanks!
OpenStudy (anonymous):
Your welcome. c:
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