Saturday

August 30, 2014

August 30, 2014

Posted by **stella** on Wednesday, December 14, 2011 at 8:29pm.

the Christmas holiday and the other friend

is heading south. If when they start,

they are 1029 miles apart and one car is traveling at 53 miles per hour, and the other 45 miles per hour, how many hours

before the two cars pass each other?

- 8th grade math -
**Lana**, Wednesday, December 14, 2011 at 10:45pm1,029 : (53 + 45) = 10.5

You don't know how long time will it take the cars to pass each other, so you assign letter "X" to the unknown time. Then multiply each car's speed by the time it would take for them to pass each other (e.g. by "X"). You'll get the following equation:

53x + 45x = 1,029

98x = 1,029

x = 1,029 / 98

x = 10.5

**Related Questions**

math - One of your friends is heading north for the Christmas holiday and the ...

Math - One of your friends is heading north for the Christmas holiday and the ...

math - one of your friends is heading north for a holiday and the other is ...

7th Grade Math - At 9:00 on Saturday morning, two bicyclists heading in opposite...

C Programming - How do you reprompt after the user inputs a wrong number into ...

7th Grade Math - Write one or two equations to represent the situation below. ...

Pre-Cal - Two airplanes take off from an airport at the same time. One travels ...

MATH - on a compass,north has a heading of 0 degrees what is the heading when ...

math - on a compass,north has a heading of 0 degrees what is the heading when ...

physics - Bob has a helicopter and from the launch pad he flies the following ...