Jen traveled a distance of 170 miles in 2 hours and 45 minutes. Express her speed, in miles per hour, to the nearest tenth

Speed = distance / time

distnace=170 miles

t=2 hours + 45 minutes * (1 hora / 60 minutes=2 hours + 0.75 hours=2.75 hours.

Speed=170 mile / 2.75 hours=61.818 ... miles/hour≈61.8 miles/hour.

Solution: 61.8 miles/hour.

61.80 miles per hour is Jen's speed.

Given:

170 miles

2 hours and 45 minutes

2 hours and 45 minutes is 2 45/60 in fraction and can be simplified to 2 3/4 in fraction.

2 hours and 45 minutes is 2.75 in decimal.

Let us use the decimal form for our time:

Speed = distance / time

= 170 miles / 2.75 hours

Speed = 61.818 miles per hour

61.818 miles per hour rounded to the nearest tenth is 61.80 miles per hour.