SOLUTION: At best buy Larry buys three CDs and three CDs for $108 from the sale rack. Kelly buys two CDs and one DVD from the same rack for $48. What is the price per CD and the price per DV

Algebra.Com
Question 631939: At best buy Larry buys three CDs and three CDs for $108 from the sale rack. Kelly buys two CDs and one DVD from the same rack for $48. What is the price per CD and the price per DVD.?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = the cost of 1 CD
Let = the cost of 1 DVD
given:
(1)
(2)
Multiply both sides of (2) by
and subtract (1) from (2)
(2)
(1)


and
(2)
(2)
(2)
(2)
The price per CD is $12 and
the price per DVD is $24
check:
(1)
(1)
(1)
and
(2)
(2)
OK

RELATED QUESTIONS

Four CDs and three DVDs cost €108, while one DVD and three CDs cost €56. Find the cost... (answered by srinivas.g)
one cd sells for $10. two cds sells for $19. three cds sells for $27. four cds $34.if the (answered by jim_thompson5910)
Jennifer purchased CDS. Some CDS were from a bin marked "2 for $12" and others were... (answered by stanbon)
Last month Dan bought two dvds and 5 cds for $65. This month he bought four dvds and... (answered by Boreal)
Sophie Germain took her life savings ($150) to a tax-free clearance sale at Media... (answered by macston)
Best buy was having a special on all their tapes and CDs. Jane was able to buy 4 tapes... (answered by robertb)
a cd rack has 8 classical cds, 5 pop cds and 3 rock cds. two cds are chosen without... (answered by stanbon)
Mark wants to buy some used CDs from hasting. He can get 6 CDs for $50.10 and 9 CDs for... (answered by Zucchini)
At a sale, all CDs are one price and all tapes are another price. Three CDs and two... (answered by nerdybill)