Algebra Homework

Question

Using the formula Distance=rate⋅time , find the distance covered by an airplane flying at 550 mph for 4 hours.

miles

Answer 1

D = rate * time

rate = distance/unit of time = speed

NOTE this is speed rather than velocity because a direction of travel is not included in the rate given)

rate = speed = 550mph

time = 4hr

D = 550 mi*[(hr)^(-1)]* 4 hr =

D = 550 mi*[(hr)^(-1)]* 4 hr=

simplify [(hr)^(-1)] and hr -> 1

D = 550 mi * 4 = 2,200 mi

I hope this helps, good luck!

Answer 2

This is a fantastic question! First, I would break down the information you need in order to solve the problem.

Based on the equation, looks like you'll need "distance", "rate" and "time". Now, let's figure out what the question stem gives you. NOTE: a rate is something performed per unit time. In this case, mph means miles per hour... sounds like a rate to me :)

time= 4 hours

rate = 550 mph

now let's put it in the equation

distance = rate * time

distance = 550mph * 4hrs

distance = 2200 miles

I hope this was helpful, please let me know if I can answer it any better!