Friday
March 24, 2017

Post a New Question

Posted by on .

Two cars leave the same point at noon. One car travels North and the other car travels East. Suppose the North bound car is travling 40mph and after two hours, the two cars are 100 miles apart. How fast is the other car going?

  • math - ,

    Your diagram should be a right-angled triangle with sides 80, 2r, and hypotenuse 100

    (2r)^2 + 80^2 = 100^2
    4r^2 = 3600
    r^2 = 900
    r = √900 = 30

    The other car was going 30 mph

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question