Posted by **Jessica** on Wednesday, November 15, 2006 at 3:59pm.

Two cars leave town going opposite directions. One car is traveling 55 mph, and the other is traveling 65 mph How long will it take before they are 180 miles apart?

Hint: The time for both cars is the same and can be represented by "t." The total distance is 180 miles. The distance = (rate)(time). If you add the (rate)(time) of the first vehicle to the (rate)(time) of the second vehicle, that will equal the total distance of 180 miles. Since you only have one unknown (t), you only need one equation.

The distance from town to one car after a time t is:

d1 = 55 mph*t

The distance from the town to the other car is:

d2 = 65 mph*t

The didstance from one car to the other car is:

d1 + d2 = 55 mph*t + 65 mph*t =

(55 mph + 65 mph)*t =

(55+ 65)mph*t=

120 (miles/hour)*t =

120 miles * (t/hour)

When is this 180 miles?

120 miles * (t/hour) = 180 miles -->

(t/hour) = 180 miles/(120 miles) = 1.5

t = 1.5 hours.

Thank you I don't get the next one either please help me!

## Answer This Question

## Related Questions

- ALGEBRA 1!!!(2) - 2.Two cars leave town going opposite directions. One car is ...
- Math - Please help me! Two cars leave town going opposite directions. One car is...
- Algebra! - Two cars leave town going opposite directions. One car is traveling ...
- Help...Math...Algebra...please!... - Two cars leave town going in the same ...
- Word Problems!! - PLz help me!These questions are on my study guide for ...
- Help again...Math!! - Two cars leave town going in the same direction. One ...
- Math - Two towns are 420 miles apart. A car leaves the first town traveling ...
- 7th Grade Math - Write one or two equations to represent the situation below. ...
- Help!Math...Again!!!PLease Help! - Two cars leave town going in the same ...
- algebra 1 - If two car are traveling in opposite directions and have average ...

More Related Questions