Answer:
1 hour
Step-by-step explanation:
Hello, let's say that her departure trip takes t in minutes, as her return speed is 3 times her departure speed, she took t/3 for the return and we know that this 40 minutes less, so we can write.
t/3=t-40
We can multiply by 3
t = 3t -40*3 = 3t - 120
This is equivalent to
3t -120 = t
We subtract t
2t-120 = 0
2t = 120
We divide by 2
t = 120/2 = 60
So this is 60 minutes = 1 hour.
Thank you.
Answer:
#2
the answer is b
Step-by-step explanation:
Answer: I would say the 3rd answer. "If she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group."
Answer:
5.3
Step-by-step explanation:
the cost of each taxi ride the same? How much would
this trip cost?
