Pratap Puri rowed 26 miles down a river in 2 hours, but the return trip took him 6 and one half hours. Find the rate Pratap can row in still water and find the rate of the current. Let xequalsrate Pratap can row in still water and yequalsrate of the current.

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

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed