Terrance and jesse are training for a long-distance race. terrace trains at a rate of 6 miles every half hour, so his unit rate is 12 miles per hour, and jesse trains at a rate of 2 miles every 15 minutes, so his unit rate is 8 miles per hour. sandra runs at the rate of 8 miles in 45 minutes. how does her unit rate compare to terrance's and to jesse?

well if you know the unit rates

12 mph=Terrance

8 mph=Jesse

so to find Sandra just simplify

(8*60)/(45*1)(miles/hour

= (480/45)mph)

so 10 2/3 miles per hour

hope I was helpful

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

step-by-step explanation:

1