Answer
40 mph
Work Step by Step
Step 1) 6 = (1./8)s + 1 ... Plug in the given value for t
Step 2) 5 = (1/8)s ... Subtract 1 on both sides
Step 3) 40 = s ... Multiply by the reciprocal, which is 8, on both sides
Step 4) 40 mph ... Final Answer