SOLUTION: Stephanie drove at an average rate of 50 miles per hour for 2 hours and then increased her average rate by 50% for the next 3 hours. Her average rate of speed for the 5 hours was <

SOLUTION: Stephanie drove at an average rate of 50 miles per hour for 2 hours and then increased her average rate by 50% for the next 3 hours. Her average rate of speed for the 5 hours was <

Algebra.Com

Question 54268: Stephanie drove at an average rate of 50 miles per hour for 2 hours and then increased her average rate by 50% for the next 3 hours. Her average rate of speed for the 5 hours was t miles per hour. What is the value of t?
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
average ~> 50mph
increase of 50% of average ~> 1.5(50) = 75mph
(50*2 + 75*3)/5 = t
(100 + 225)/5 = t
325/5 = t
65mph = t
RELATED QUESTIONS
Angela drove 100 miles to Batonsville at an average speed of 50 miles per hour. She then... (answered by ankor@dixie-net.com)

Angela drove 100 miles to Batonsville at an average speed of 50 mph. She then increased... (answered by stanbon)

Sam drove to work at an average speed of 50 miles per hour from her house and then... (answered by Alan3354)

Rachel drives at a rate of 40 miles per hour for 3 hours on a country road and then... (answered by mananth)

A family determined the average cost of maintaining and operating the family car to be... (answered by richwmiller)

A family determined the average cost of maintaining and operating the family car to be... (answered by jorel1380)

Traveling at an average rate of between 40 and 50 miles per hour for 3 to 4 hours. What... (answered by fractalier)

A car travels at an average rate of 50 miles per hour for 3 hours how far does it travel? (answered by Alan3354)

please help 1.maria travels upstream by boat a distance of 60 miles in 15 hours. the... (answered by mananth)