Distance ÷ Speed = Time
81 miles ÷ 60.4 miles per hour= 1.34 hours
1.34 hours ≈ 1 hour 20 min
Convert to slope-intercept form.
5x - 2y = 10
2y = 5x - 10
y = (5/2)x - 5
So the slope is 5/2 and y-intercept is at (0, -5).
As the picture highlights, the opposite sides have the same lengths. The perimeter is the sum of all lengths, so we have

Plug the required value for the perimeter and expand the right hand side:

Simplify the right hand side:

Add 36 to both sides:

Divide both sides by 12:

Now that we know the value for s, let's deduce the lengths of the sides:


Answer:
The answer is 2 7 divided by 3.5 is equivalent to 2