pysics

two automobiles are 60 miles apart an dtraveling in the same direction. The first automobile is behind the second and is moving at 60 mph and overtaking the second automobile which is moving at 45 mph. in how many hours will the first pass the second.
a)4 b)2.5 c)1.75 d)1.5 e).55

  1. ๐Ÿ‘ 0
  2. ๐Ÿ‘Ž 0
  3. ๐Ÿ‘ 35
asked by sam
  1. D=RT

    Total distance of the the second car is 60miles +x
    Total distance of the first car is x

    Two equations:

    1.) 60miles+x=60mphT

    2.) x=(45mph)T

    Substitute 2 into 1 gives the following:

    60miles + 45mphT=60mphT

    Solve for T:

    60miles=15mphT

    60miles/15mph=15mph/15mphT

    4hr=T

    Answer choice A is the best answer choice.

    1. ๐Ÿ‘ 0
    2. ๐Ÿ‘Ž 0
    posted by Devron

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Two automobiles travel in the same direction at 40 miles per hour and 50 miles per hour, respectively? How many hours after they are alongside of each other will they be 18 miles apart.

    asked by ABC on May 13, 2017
  2. c++

    Write a C++ program that reads the Capacity (in gallons)of an automobile fuel tank, and Miles per gallon this automobile can be driven. It outputs the number of miles this automobile is driven without refueling

    asked by ahmad on May 17, 2014
  3. UOS

    Write a C++ program that reads the Capacity (in gallons)of an automobile fuel tank, and Miles per gallon this automobile can be driven. It outputs the number of miles this automobile is driven without refueling .

    asked by ahmad on May 17, 2014
  4. Math

    An automobile dealership uses CODE = 1 for new automobiles, CODE = 2 for used automobiles, and CODE = 3 for separate accessories. A salesmanโ€™s commissions are as follows: on new automobile, 3% of the selling price but a maximum

    asked by Zack on May 23, 2017
  5. Math

    An automobile dealership uses CODE = 1 for new automobiles, CODE = 2 for used automobiles, and CODE = 3 for separate accessories. A salesmanโ€™s commissions are as follows: on new automobile, 3% of the selling price but a maximum

    asked by Mia on May 24, 2017
  6. Calculus

    Two automobiles are travelling on intersecting roads. The first automobile is travelling northeast at 35 km/h. The second automobile begins 7 km north of the first, and it is travelling east at 25 km/h. Assuming that these cars

    asked by Antia on April 10, 2012
  7. Calculus

    Two automobiles are traveling on intersecting roads. The first automobile is traveling northeast at 35 km/h. The second automobile begins 7 km north of the first, and it is traveling east at 25 km/h. Assuming that these cars will

    asked by Angio on April 9, 2012
  8. stats

    Homeowners claim that the mean speed of automobiles traveling on their street is greater than the speed limit of 35 miles per hour. A random sample of 120 automobiles has a mean speed of 37 miles per hour and a standard deviation

    asked by Anonymous on April 9, 2016
  9. Social Studies

    Well- this is kind of social studies...so anyway, I have to do a presentation on automobiles and I wanted to know some problems with automobiles in the 1920's? I already have: The automobiles scared horses because they were so

    asked by Anonymous on November 19, 2015
  10. Calculus - Related Rates

    A road perpendicular to a highway leads to a farmhouse located 5 miles away. An automobile traveling on the highway passes through this intersection at a speed of 65mph. How fast is the distance between the automobile and the

    asked by Andy on April 25, 2017

More Similar Questions