When will train B catch up with train A?

Question

2. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 70 miles per hour. Train A passes a station at 7:25 P.M. If train B passes the same station at 7:37 P.M, at what time will train B catch up to train A?

When will train B catch up with train A?

3. Find the indicated outputs for f(x) = 5x2 – 3x

f(0) =

f(-1) =

f(2) =

4. Medical service charges $30 for a phone and $20/month for its economy plan. The equation c = 20t + 30 describes the total cost, c, of operating a media services phone for t months

The total cost for 8 months of service is what?

5. In 1993, the life expectancy of males in a certain country was 66.3 years. In 1999, it was 70.1 years Let E represent the life expectancy in year t and let t represent the number of years since 1993

The linear function E(t) that fits the data is what?

Use the function to predict the life expectancy of males in 2004

Answer 1

Anyone got a bottle of Lucozade please? My brain hurts!

Alan L.

Answer 2

2.  8:49

3.  Your equation is ambiguous.  Can't tell if you mean f(x) = 5*(2-3x) or f(x) = (5*2) - 3x

4. $190

5 a. E(t) = 66.3 + .6333t

5 b. 73.3 years

Answer 3

Well train B will never catch up with train A because, unknown to the question writer engineer A has an ego problem and no way is he going to let that piece of sh** B engineer catch up with him!

Answer 4

Calculate the total heating surface of a locomotive boiler:

diameter, 5 feet

length, 25 feet

150 tubes, each 2 inches in diameter

Answer 5

Sheesh do your own homework maybe you'll learn something.