Question

46. Office Technology Pyro-Tech. Inc. is upgrading office tech- nology by purchasing inkjet printers, LCD monitors, and addi- tional memory chips. The total number of pieces of hardware purchased is 46. The cost of each inkjet printer is $109, the cost of each LCD monitor is $129, and the cost of each memory chip is $89. The total amount of money spent on new hardware came to $4774. They purchased two times as many memory chips as they did LCD monitors. Determine the number of each that was purchased. Source: Nathan Borchelt

Answer 1

46 Let us take Purchased Noct purchased No of LCD monitors = 8 memory chips=au Ci condition given in problem Total number of hardware pieces purchaxed=46 so Inkjet Printers & LCD monitorst memory chips=46 Inkjet Printers of a +22=46 Inkjet Printers = 46-3x7 cost of each LCD monitor is =8129 Tatal cost it all LCD monitors= 8x8129 = $1294 cost of each memory chip=889 Total cost of all memory chips = (22)x 889 = $ 178 « cost it each Inkjet Printer =$109 Tatal cost of all Inkjet printers = (16-30) x 8109 $5014-378)

but tatal cost all hardware, preces = $4774 80 1298 +1784 +5014–327 X=4774 =) 3074-3278=U774-5014 =) -202 = -240 =) x = -2400 = 12 . =) [2=12 = 20 = 2(12)= 24 and 46-3a = 46-3 (12) = 46-36=10 - [16-3x=10] 80 finally purchased LCD Monitory =12 purchased memory chips =24 Purchaxed Inkjet Printers - 10