Find an equation for the perpendicular bisector of the line segment whose endpoints are (1, -1) and (-9,7).

the answer is 31.27mph

i got 10.28 but that rounds up to 10.3

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.