Reiko drove from point A to point B at a constant speed, and then returned to A along the same route at a different constant spe

Question

2 years ago

15

Reiko drove from point A to point B at a constant speed, and then returned to A along the same route at a different constant spe

ed. Did Reiko travel from A to B at a speed greater than 40 miles per hour?
(1) Reiko's average speed for the entire round trip, excluding the time spent at point B, was 80 miles per hour.
(2) It took Reiko 20 more minutes to drive from A to B than to make the return trip.

Mathematics

2 answers:

Vikki [24] · Answer 1 · 2022-04-27T21:54:33+03:00

Vikki [24]2 years ago

4 0

Answer:

no

Step-by-step explanation:

it was slower the way there and if he was going 40 it would have taken the same time to get there as it would have to go back

Minchanka [31] · Answer 2 · 2022-04-27T22:57:01+03:00

Answer:

Yes.

Step-by-step explanation:

Reiko's average speed was 80 miles per hour. That is more than 40 miles per hour. Even if it took him longer to drive from A to B, his speed would still be more than 40 miles per hour to have the average speed be 80 miles per hour.

Hope this helps!