SOLUTION: A video store received two shipments of video cassettes. The value of the first shipment, which contained eight 4-hour and sixteen 8-hour cassettes, was $296. The value of the seco
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Question 467049: A video store received two shipments of video cassettes. The value of the first shipment, which contained eight 4-hour and sixteen 8-hour cassettes, was $296. The value of the second shipment, which contained six 4-hour and eighteen 8-hour cassettes was $252. Find the x, the cost of a 4-hour cassettes and y, the cost of an 8-hour cassette. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Given:
(1)
(2)
Multiply Both sides of (1) by
Multiply both sides of (2) by
Then subtract (1) from (2)
(2)
(1)
Plug this back into (1)
(1)
(1)
(1)
(1)
check answers:
(2)
(2)
(2)
(2)
OK
