Homework Help: Algebra

Posted by Lori on Monday, October 8, 2012 at 5:21pm.

Susan drove for 2 hours at 85 km/hr and then for 3 hours more at 95 km/hr. What was her average speed for the entire trip?

Algebra - Ms. Sue, Monday, October 8, 2012 at 5:38pm
[(2 * 85) + (3 * 95)] / 5 = _____ km/hr

Answer this Question

Related Questions

physical science - Brad rides his bike 20 km. He covers the distance in 45 ...
math - it took cindy 2h to bike from abbott to benson at a constant speed. the ...
physics - a motorist travels at 80 km/hr for 3 hours and 2 more hours at 100 km/...
physics URGENT! PLEASE - Figure the resultant velocity of a plane that is ...
trig - Two ships, one sailing at 30 km/hr and the other at 45 km/hr, left port ...
Pre Calc! - Two ships, one sailing at 30 km/hr and the other at 45 km/hr, left ...
8th Grade Science - A runner whose initial speed is 29 km/hr increases her speed...
physics - The speed of a car moving in a straight line increases every second. ...
Physics - A motorist travelling at 107 km/hr is being chased by a police car at ...
Derivatives - Ship A is 70 km west of ship B and is sailing south at the rate of...

For Further Reading

First Name:
School Subject:
Answer: