Question

John was competing in a kayaking competition and he traveled 7 miles upstream and 10 miles downstream with a current of 2 miles per hour. With an average of "x" miles per hour, what is the amount of time elapsed in one round trip?

Answer 1

rate * time = distance

they tell you the rate is x miles per hour
the distance of a round trip is 7 up and 10 down= 17 miles total
x * time = 7+10
x * time = 17

solve for time

Answer 2

its x to the power of time = 17?

Answer 3

if you had
2 * 3 = 6
but you did not know it was 3, so you had
2 * a = 6
do you see if you divide both sides by 2, you can find a ?

do the same to find time in
x * time = 17