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choli [55]
3 years ago
5

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.
Mathematics
2 answers:
Hunter-Best [27]3 years ago
5 0

Answer:

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

Step-by-step 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 = \frac{Diistance}{Time}

For first we have \frac{245}{3.5}= 70 miles per hour

For second we have \frac{140}{2}= 70 miles per hour

For third we have d=70t

                            ∴   \frac{d}{t} =70=\frac{distance}{time} =Rate

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

WARRIOR [948]3 years ago
5 0

Answer:

Step-by-step explanation:

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

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