It takes Engineer Kweku three hours to drive to his brother’s house at an average speed of 50 miles per hour. If He takes the same route home, but his average speed is 60 miles per hour, what is the time, in hours, that it takes him to drive home?

It takes 2 hours 30 minutes for him to drive home.

Step-by-step explanation:

case 1 :

Distance = Speed time

⇒ 50  3

⇒ 150 miles

∴ Distance = 150 miles.

case 2 :

Time taken = Distance / speed

⇒ 150 / 60

⇒ 2.5 hours (2 and 1/2 hours)

⇒ 2 hours 30 minutes.

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )