An hour and 15 minutes. Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!

7 0

3 years ago

Determine the slope of the line that passes through each pair of points. TEKS 8.4(B)

lana66690 [7]

Slope of EF = 5/2

Slope of XY=4/3

Further explanation:

"Slope is the steepness of a line"

The formula for slope when two lines are given:

$m=\frac{y_2-y_1}{x_2-x_1}$

Now,

$m=\frac{4-(-1)}{4-2}\\ =\frac{4+1}{2}\\ =\frac{5}{2}$

$m=\frac{0-4}{-2-1}\\ =\frac{-4}{-3}\\ =\frac{4}{3}$

Hence,

Slope of EF = 5/2

Slope of XY=4/3

Keywords: Slope, Slope Calculation

Learn more about slope at:

#LearnwithBrainly

7 0

3 years ago