Solve for x in the second equation first
we know that f(1)=2 so f^-1(2)=1
so B is correct!
Divide both sides of the equation by 0.1 which leaves you with
n = 89.9/0.1 = 899
40 minutes is 2/3 of an hour.
30 miles per hour x 2/3 hour = 20 miles.
30 minutes = 1/2 hour.
60 miles per hour x 1/2 hour = 30 miles.
Total = 20 + 30 = 50 miles.
Answer:
your answer would be 20 because you would find what both can go into.
