Question

Write a unit rate for the situation. Round to the nearest hundredth if necessary.

driving 140 mi in 2 h 45 min

A)0.95 mi/min

B)1.33 mi/min

C)0.57 mi/min

D)0.85 mi/min

Answer 1

2 hr and 45 minutes is = to 165min, so do 140 divided by 165, and you will get 0.8484miles per minute, which is D

Answer 2

Answer: The correct option is

(D) 0.85 miles/min.

Step-by-step explanation: We are given to find the unit rate for the following situation :

"driving 140 miles in 2 hour 45 min."

We know that

1 hour = 60 minutes.

So, we get

2 hours 45 minutes = 2 × 60 + 45 = 120 + 45 = 165 minutes.

Now, we will use the UNITARY method.

In 165 minutes, distance drove = 140 miles.

Therefore, in 1 minutes, distance drove is given by

`(140)/(165)=0.848484...=0.85~\textup{miles}.`

Thus, the required unit rate is 0.85 miles/minute.

Option (D) is CORRECT.