Question

medal help

Answer 1

The average rate of change of an object is given by the formula r= d/t, where r is the rate of change, d is the distance travelled, and t is the time it took to travel the given distance. We often use some form of this formula when we are trying to calculate how long a trip may take. If our destination is 225 miles away and we can average 75 mph, then we should arrive in 3 hours ( 225 mile/ 75 mph = 3 hours). In this case you would be rearranging the formula so that t= d/r. However, if your mother finds fout that the trip only took 2 1/2 hours, she will be upset. use the rate of formula to explain why

Answer 2

If we use the rate formula we find that to go 225 miles in 2.5 hours you would have to travel an average of 90mph, well over most speed limits.

Answer 3

be clear @twvogels

Answer 4

I gave you the entire answer to the question in a complete sentence. That's about as clear as you can get.

Answer 5

how did u get 90mph

Answer 6

Use the rate equation that you are given (r=d/t) and substitute in the known values. Then you can solve for the rate by simple division.

Answer 7

can u do it

Answer 8

We are told that the rate equation is \[r=\frac{d}{t}\]We know that the total distance is 225miles and the time is 2.5hours. To solve we substitute the known values into the equation and solve: \[r=\frac{d}{t}\]\[r=\frac{225miles}{2\frac{1}{2}hours}\]\[r=90\frac{miles}{hour}\]