Printer A prints for 10 minutes, so prints
... (30 pages/minute)×(10 minutes) = 300 pages
Printer B prints for 7 minutes, so prints
... (40 pages/minute)×(7 minutes) = 280 pages
At the end of 10 minutes, the two printers will have printed
... 300 pages + 280 pages = 580 pages
Answer:
c
Step-by-step explanation:
=1/81
=3
=
=1/81
9 + t/12 = -3
t/12 = -12
t = -144
hope this helps