SOLUTION: One week a computer store sold a total of 36 computers and external hard drives. The revenue from these sales was ​$23490. If computers sold for​ $1180 per unit and har
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Question 1123116: One week a computer store sold a total of 36 computers and external hard drives. The revenue from these sales was $23490. If computers sold for $1180 per unit and hard drives for $125 per unit, how many of each did the store sell?
How many computers were sold ?
How many external hard drives were sold ? Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! x + y = 36
1180x + 125y = 23490
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1180x + 125y = 23490
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1180x + 1180y = 42480
0x + -1055y = -18990
= -1055y = -18990
y = -18990/-1055
y = 18 The store sold 18 external hard drives and:
x = 36-18 = 18 computers
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Check:
(18*1180) + (18*125) = 23490 Correct
