Answer:
Step-by-step explanation:
Answer:
In F: -3.5
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
It will be 2400 because 4 times 1 equal to 4 them multiply it by 14 and I got 2400
You find the rates of each computer on its own...
One does the job in 55 minutes which we can say is 1/55
The other has a rate of 1/45.
The question wants to know how long it would take both working simultaneously to complete the job...
t/55+t/45=1
(9t+11t)/495=1
20t=495
t=24.75 minutes (24:15)