Answer:
Ms. Thomas was driving at constant rate of 52 miles/hour.
Step-by-step explanation:
Given:
Total time to travel (t) = 45 minutes
Distance drove (d) = 39 miles
we need to find the constant rate in miles per hour at which she was driving.
Solution:
Now we know that;
We need to find constant rate at miles per hour;
But time is given in minutes.
So we will convert minutes into hour by dividing by 60 we get;
time ![t =\frac{45}{60}= 0.75\ hrs](https://tex.z-dn.net/?f=t%20%3D%5Cfrac%7B45%7D%7B60%7D%3D%200.75%5C%20hrs)
Now we know that;
Distance is equal to rate times time.
framing in equation form we get;
distance ![d =rt](https://tex.z-dn.net/?f=d%20%3Drt)
Or
rate ![r= \frac{d}{t} = \frac{39}{0.75}= 52 \ mi/hr](https://tex.z-dn.net/?f=r%3D%20%5Cfrac%7Bd%7D%7Bt%7D%20%3D%20%5Cfrac%7B39%7D%7B0.75%7D%3D%2052%20%5C%20mi%2Fhr)
Hence Ms. Thomas was driving at constant rate of 52 miles/hour.
Answer:
720 miles.
Step-by-step explanation:
Going 60 miles per hour for 12 hours would amount to driving 720 miles in total.
Answer:
50
Step-by-step explanation:
she will need to mow 8 yards because 109 divided by 15 equals 7.2 but she cant just mow 7.2 yards so you round up to 8 yards