In Detroit the temperature is 69 degrees F and is rising at a rate of 2 degrees F per hour. In Atlanta the temperature is 84 degrees F and is falling at a rate of 3 degrees F per hour. If the temperatures continue to change at the same rates, how long will it be befire the temperatures are the same?
1. Write a verbal model for this problem.
2. Write an equation for the model.
3. Solve the equation and answer the question.
2006-08-05 18:58:46 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Let the time taken for the two temperatures to be equal= t
Therefore,
69 + 2*t = 84 - 3*t
or, 5*t = 15
or, t =3 hours
2006-08-05 19:19:21 · answer #1 · answered by adi007boy 2 · 0⤊ 0⤋
84, 81, 78, 75
69, 71, 73, 75
thats it, in three hours arethe same.
2006-08-06 02:15:39 · answer #2 · answered by lil dog 2 · 0⤊ 0⤋
In three hours, it will be 75 both places.
2006-08-06 02:05:30 · answer #3 · answered by Aldo the Apache 6 · 0⤊ 0⤋
this isnt the 'do my homework' forum.
2006-08-06 02:03:44 · answer #4 · answered by Justin 2 · 0⤊ 0⤋