A car travels 180 miles in 3 hours, what is the rate of speed?

Question

120 miles/hour
90 miles/hour
60 miles/hour
30 miles/hour

Answer 1

To find the speed of the car, you can use the formula:

\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

In this case, the distance is 180 miles and the time is 3 hours.

\[ \text{Speed} = \frac{180 \text{ miles}}{3 \text{ hours}} = 60 \text{ miles/hour} \]

Therefore, the rate of speed is 60 miles/hour.

Answer 2

14.
A plant grows 12 inches in 3 days, what is the rate of change?
3 inches/day
4 inches/day
6 inches/day
9 inches/day

Answer 3

To find the rate of change in the plant's growth, you can use the formula:

\[ \text{Rate of Change} = \frac{\text{Change in Height}}{\text{Change in Time}} \]

In this case, the change in height is 12 inches and the change in time is 3 days.

\[ \text{Rate of Change} = \frac{12 \text{ inches}}{3 \text{ days}} = 4 \text{ inches/day} \]

Therefore, the rate of change is 4 inches/day.