college algebra

posted by Maggie

Kiran drove from City A to City B, a distance of 242 mi. She increased her speed by 10 mi/h for the 351-mi trip from City B to City C. If the total trip took 12 h, what was her speed from City A to City B?

1. Steve

since time = distance/speed, If she started out with speed x, then

242/x + 351/(x+10) = 12

2. Anonymous

12

Similar Questions

1. College Physics

An airplane flies 200 km due west from city A to city B and then 240 km in the direction of 31.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A?
2. Math

Mr Roberts drove a distance of 118km from city X to city Y. At first,he drove at a speed of 60 km/h. Then he drove for 1 1/4hr to city Y,covering a distance of 70km. If Mr Roberts left city X at 1400, at what time did he arrive at …
3. Physics

City B is northwest of City A, and the 400 mile trip by car takes 8 hours. The cities are 320 miles apart if able to travel in a straight line. What is the speed of a trip from City A to City B?
4. physics

City B is northwest of City A, and the 400 mile trip by car takes 8 hours. The cities are 320 miles apart if able to travel in a straight line. What is the speed of a trip from City A to City B?
5. College Algebra

Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 50 mi/h. She returned home 41 hours after leaving. How many miles is City …
6. algebra

A man drove at the rate of 50 km an hour while outside a city and 30 km an hour while within the city. If a trip of 33 km took him 54 minutes, how much of the trip was outside the city?
7. Math

Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 40 mi/h. She returned home 41 hours after leaving. How many miles is City …
8. Algebra

Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 25 hours, and on the trip back averaged 55 mi/h. She returned home 40 hours after leaving. How many miles is City …
9. algebra

Wilma drove at an average speed of 60 mi/h from her home in City A to visit her sister in City B. She stayed in City B 20 hours, and on the trip back averaged 50 mi/h. She returned home 45 hours after leaving. How many miles is City …
10. physics

city b is north of city a and the 400 mile trip by care takes 8 the cities are 320 miles apart in a straight line what is the velocity of a trip from city a to city b

More Similar Questions