Sean has a toy race car track in his room. it takes
3/4
of a minute for a race car to travel
4 1/2
times around the track. at this rate, how long does it take the race car to go around the track 1 time?

It would take the race car 10 seconds to go around the track one time.

Step-by-step explanation:

3/4 minutes = 45 seconds

This means 4 1/2 laps of the track is 45 seconds

4 1/2 = 45

Divide both sides by 4 1/2 to find the length of time to complete 1 lap

1 time around the track = 10 seconds

1/6

Step-by-step explanation:

3/4 divided by 4 1/2 = 1/6

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

8 2/3 is the answer

step-by-step explanation: just use a calculator