Saturday

March 28, 2015

March 28, 2015

Posted by **BC** on Friday, August 26, 2011 at 7:13pm.

- algebra -
**bobpursley**, Friday, August 26, 2011 at 7:49pmdistancecar= 60*t/60=t

distancetruck=70(t-7)/60 where is in minutes.

at passing, the distances are equal. set them equal and solve for time t.

t=7/6t-49/60

1/6t=49/60

t=4.9 minutes

check my work.

- algebra -
**bobpursley**, Friday, August 26, 2011 at 7:50pmoops, error.

t=7/6 t -49/6

now solve for t

- algebra -
**coursonc**, Sunday, August 28, 2011 at 12:43amI would do it a different way. Since the car has a 7 Min headstart, traveling at 60mph, you can figure the distance it is ahead of the truck. Then, with the truck overtaking the car, by 10mph, you can figure the time it would take, going 10mph to go this headstart distance.

**Answer this Question**

**Related Questions**

CALCULUS - A gas station stands at the intersection of a north-south road and an...

Calculus - 4. A gas station stands at the intersection of a north-south road and...

physics - A truck is traveling with a uniform velocity 24 m/s, when it passes a ...

Math - How long will it take a car traveling 65 mph to pass a car traveling 45 ...

algebra - Truck A leaves a truck stop traveling at 80 km/hr. Four hours later, ...

Math - A refrigerated truck leaves a rest stop traveling at a steady rate of 56 ...

VARIATION- ALGEBRA 2 - The length of skid marks a car makes when braking varies ...

Algebra - A woman driving a car 14 ft long is passing a truck 30 ft long. The ...

math - Suppose that a certain municipality uses the equation y=3(x-50)+30 to ...

Math - A truck traveling at an average rate of 45 miles per hour leaves a rest ...