Acompany is upgrading office technology by purchasing inkjet printers, lcd monitors, and additional memory chips. the total number of pieces of hardware purchased is 45. the cost of each inkjet printer is $114, the cost of each lcd monitor is $135, and the cost of each memory chip is $89. the total amount of money spent on new hardware came to $4782. they purchased two times as many memory chips as they did lcd monitors. determine the number of each that was purchased.

inkjet = 9 units

monitor = 12 units

memory chips = 24 units

Explanation:

given,

total number of piece = 45

cost of each inkjet(P)  = $114

cost of each LCD monitor(M) = $135

cost of each memory chip = $89

total amount of money spent on new hardware =  $4782

memory chips = 2 M

P + M + 2M = 45

P + 3 M = 45(1)

114 P  + 135 M + 89 x (2 M) = $4782

114 P + 313 M = 4782(2)

on solving equation (1) and (2)

M = 12

P = 9

so,

inkjet = 9 units

monitor = 12 units

memory chips = 24 units

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