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Mathematics, 26.01.2020 20:31 melissapulido198
The tables below show running hours of three printers that produce greeting cards and the total number of greeting cards produced over three weeks.
number of hours machine is running
printer a
printer b
printer c
week 1
40
50
45
week 2
45
50
40
week 3
55
30
60
total cards produced
week 1
7,950
week 2
7,800
week 3
9,600
printer b uses $15 in ink every hour. what is the ink cost for each card coming from printer b?
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