Question

Which does NOT represent a constant rate of change of 70 miles per hour for a car? Question 4 options: The car travels 245 miles in 3.5 hours. The car travels 140 miles in 2 hours. d = 70t, where d represents distance in miles and t represents time in hours. d = 70t, where d represents distance in kilometers and t represents time in hours.

Answer 1

Explanation:

Train B is faster because if u multiply 70*2 is 140 70*4 is 280 70*5 is 350 so train B

Answer 2

The answer is fourth option that is
`d=70t` where d represents distance in kilometers and t represents time in hours.

Explanation:

Given is that rate of change is 70 miles per hour for a car.

In option 1, option 2 and option 3 same rate is there and also we know
`Rate = (Diistance)/(Time)`

For first we have
`(245)/(3.5)`= 70 miles per hour

For second we have
`(140)/(2)`= 70 miles per hour

For third we have
`d=70t`

∴
`(d)/(t) =70=(distance)/(time) =Rate`

And the Fourth one is NOT representing the same Because its distane unit is in Kilometer while others were in miles