Posted by **john** on Tuesday, February 17, 2009 at 6:49am.

rachel allows herself one hour to reach a sales appointment 50 miles away. after she has driven 30 miles, she realizes that she must increase her speed by 15mph in order to arrive on time. what was her speed for the first 30 miles?

- algebra -
**tchrwill**, Tuesday, February 17, 2009 at 10:35am
Rachel allows herself one hour to reach a sales appointment 50 miles away. after she has driven 30 miles, she realizes that she must increase her speed by 15mph in order to arrive on time. what was her speed for the first 30 miles?

The time to drive the first 30 miles is T1 = 30/V1.

The time to drive the last 20 miles is T2 = 20/(v1 + 15)

wHAT DO YOU KNOW ABOUT t1 + t2?

- algebra -
**john**, Tuesday, February 17, 2009 at 3:48pm
that it equals 60 minutes?

## Answer This Question

## Related Questions

- college algebra word problem - rachel allows herself 1 hour to reach a sales ...
- math....please help! - rachel allows herself 1 hour to reach a sales appt 50 ...
- algebra - Rachel allows herself 1 hour to reach a sale appointment 50 mile s ...
- algebra word problem: still stuck - question: rachel allows herself 1 hour to ...
- Math - Suppose you are driving to visit a friend who lives far away. You are ...
- Math - A small truck is to be driven 300 miles on a freeway at a constant speed ...
- Trigonometry- Help! - After one hour in flight, an airplane is located 200 miles...
- Math - At the last school pep rally 4 out of every 6 students wore school colors...
- Algebra - Yes. The car will travel 40 miles in an hour. A certain Car Travels 14...
- Algebra 2 - A cars fuel efficiency is 24 miles per gallon and can be driven 324 ...

More Related Questions