the tables below show running hours of three printers that produce greeting cards and the total number of…

the tables below show running hours of three printers that produce greeting cards and the total number of greeting cards produced over three weeks.\n\n| | number of hours machine is running | | |\n|--|--|--|--|\n| | printer a | printer b | printer c |\n| week 1 | 40 | 50 | 45 |\n| week 2 | 45 | 50 | 35 |\n| week 3 | 50 | 40 | 50 |\n\n| total cards produced | |\n|--|--|\n| week 1 | 7,950 |\n| week 2 | 7,350 |\n| week 3 | 8,700 |\n\nprinter b uses $15 in ink every hour. what is the ink cost for each card coming from printer b?

the tables below show running hours of three printers that produce greeting cards and the total number of greeting cards produced over three weeks.\n\n| | number of hours machine is running | | |\n|--|--|--|--|\n| | printer a | printer b | printer c |\n| week 1 | 40 | 50 | 45 |\n| week 2 | 45 | 50 | 35 |\n| week 3 | 50 | 40 | 50 |\n\n| total cards produced | |\n|--|--|\n| week 1 | 7,950 |\n| week 2 | 7,350 |\n| week 3 | 8,700 |\n\nprinter b uses $15 in ink every hour. what is the ink cost for each card coming from printer b?

Answer

Answer:

$0.1$

Explanation:

Step1: Calculate total running - hours of Printer B

$50 + 50+40=140$ (hours)

Step2: Calculate total ink cost of Printer B

$140\times15 = 2100$ (dollars)

Step3: Calculate total number of cards produced

$7950 + 7350+8700=24000$ (cards)

Step4: Calculate ink cost per card from Printer B

$\frac{2100}{21000}=0.1$ (dollars per card)