Sally can drive 750 miles in 12 hours and 30 minutes. what is her unit rate in miles per hour?

Sixty (60) Miles per hour.

This is a fraction equal to

750 miles ÷ 12.5 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 12.5

750 miles÷ 12.5

12.5 hours÷ 12.5

=

60 miles

1 hour

=

60 miles

hour

= 60 miles per hour

i have no clue at all sorry

step-by-step explanation:

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: