algebra 2

posted by .

Two families met at a par for a picnic at the end of the day, they part ways. Family A leaves 15 minutes after Family B and travels east at an average of 42 mph; while family B travels west at an average of 50mph. Both families have an approximately 160 miles to travel.
1.)find the time(in hours and minutes) that it takes them to be 120 miles apart
2.) when family B arrives at home how much further does Family A still have to travel?
I believe the answer to part 1 is 8 hours and 9 minutes but i have no idea for the second part on how to set up the equation. For the first part i made a table with R,T,D and for the second part i also made a table with R,T,D

  • algebra 2 -

    they are moving apart at 92 mph (the sum of their speeds)

    so it takes ... 120 mi / 92 mph ... for them to be 120 mi apart

    B arrives home in ... 160 mi / 50 mph

    use B's travel time (minus 15 min) to find how far A has traveled

  • algebra 2 -

    so would the equation for b be
    42(x-15)=160-50x

  • algebra 2 -

    B's travel time is ... 160/50 = 3.2 hr

    at this point, A has been traveling for
    ... 3.2 - .25 = 2.95 hr

    A's remaining distance is
    ... 160 - (42 * 2.95)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. social studies for kindergarten

    What makes a family? Why a family is important?
  2. math

    the picnic committee dicided that the charge for this year's fundraiser picnic is $10 per family puls %2 for each person in the family. determine the number of people in a family that pays $36?
  3. algebra

    A family refers to a group of two or more people related by birth, marriage, or adoption who reside together. In 2000, in Country A, the average family net worth was $460,000, and there were about 7.6*10 to the seventh power families. …
  4. probability

    PROBLEM 7: SAMPLING FAMILIES (3 points possible) We are given the following statistics about the number of children in the families of a small village. There are 100 families: 10 families have no children, 40 families have 1 child …
  5. Probability

    We are given the following statistics about the number of children in the families of a small village. There are 100 families: 10 families have no children, 40 families have 1 child each, 30 families have 2 children each, 10 families …
  6. chemistry

    When calling the families on the periodic chart by the top or first name in the column, where hydrogen is a non metal, and in family 13, where boron is a metaloid , is it correct to call those families the hydrogen or lithium family …
  7. Science

    b) Two families Mäkinen* and Nieminen* travel by cars a distance of 185 km. In the middle of the travel both have a break of 20 min. During driving family Nieminen has an average speed of 90 km/h. Family Mäkinen drives the first …
  8. stats

    Suppose we had two families, where Family A included 5 children and Family B included only 1 child. If we randomly chose a child from the families, what is the probability that the child came from Family A?
  9. math

    hi, one question i have is for the following problem:"Two families meet at a park for a picnic. At the end of the day, they part ways. Family A leaves 15 mins after family B and travels east at an average speed of 42mph; while, family …
  10. Math

    Two families met at a par for a picnic at the end of the day, they part ways. Family A leaves 15 minutes after Family B and travels east at an average of 42 mph; while family B travels west at an average of 50mph. Both families have …

More Similar Questions