joey rode his bike 20 miles at a speed of 8 mph. how long did it take him?

a) 2/5 hour
b) 2.5 hours
c) 3 hours
d) 5 hours

2.5 hours

Step-by-step explanation:

20 ÷ 8 = 2.5

we have to divide the 20 by the 8 to figure out the amount of time and because Joey rode at 8 mph and traveled 20 miles than if you divide the miles traveled (y) by the rate (m), then you would get the amount of time it took (x); keep the slope intercept formula, y = mx + b, in mind

since there wasnt a y-intercept then you can ignore the b, but if you plug in the numbers for the variables then it would be right

20 = 8(2.5)

20 = 20

yes   because as the functions are graphed they eventually will intersect unless otherwise

step-by-step explanation:

slope =   (y2 -y1) ÷ (x2 -x1)

slope = (0 -0) / (-5, -7)

slope = 0 / -12 = 0

the slope of the line is zero.   it is perfectly horizontal.

step-by-step explanation: