Which person drove at an average speed of 47 miles per hour if bill drove 315 miles in 7 hours, Alisha drove 235 miles in 5 hours, and Joanne drove 414 hours in 9 hours

Alisha

Step-by-step explanation:

Given:

Bill drove 315 miles in 7 hours.

Alisha drove 235 miles in 5 hours.

Joanne drove 414 hours in 9 hours .

Question asked:

Which person drove at an average speed of 47 miles per hour ?

Solution:

To know that who drove with an average speed of 47 miles per hour, we will have to find speed of each rider by using speed and distance formula:-

For Bill

For Alisha

For Joanne

Thus, Alisha drove with an average speed of 47 miles per hour.

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

sure i'm up for it

step-by-step explanation: