A person walks 3 miles in 1 hour, then walks 4 miles in 2 hours. He stops for lunch for one hour to rest. Then he walks 3 miles in 1 more hour. What is his average speed for the journey?
What is the equation for average speed?
Save = DT
Save = Dtotal(Ttotal)
Save = ΔD/ΔT
Save = Dtotal/Ttotal
A person walks 3 miles in 1 hour, then walks 4 miles in 2 hours. He stops for lunch for one hour to rest. Then he walks 3 miles in 1 more hour. What is his average speed for the journey?
Equation: Save = Dtotal/Ttotal
So we need to find the total distance and total time. What is the total distance traveled?
7 miles
11 miles
12 miles
10 miles
A person walks 3 miles in 1 hour, then walks 4 miles in 2 hours. He stops for lunch for one hour to rest. Then he walks 3 miles in 1 more hour. What is his average speed for the journey?
Equation: Save = Dtotal/Ttotal
Dtotal = 10 miles
What is the total time for the journey?
6 hours
3 hours
5 hours
4 hours
A person walks 3 miles in 1 hour, then walks 4 miles in 2 hours. He stops for lunch for one hour to rest. Then he walks 3 miles in 1 more hour. What is his average speed for the journey?
Equation: Save = Dtotal/Ttotal
Dtotal = 10 miles Ttotal = 5 hours
Which of the following is correct?
Save = 10mi + 5hr
Save = 10mi/5hr
Save = (10 mi)(5hr)
Save = 5hr/10mi
A person walks 3 miles in 1 hour, then walks 4 miles in 2 hours. He stops for lunch for one hour to rest. Then he walks 3 miles in 1 more hour. What is his average speed for the journey?
Equation: Save = Dtotal/Ttotal
Dtotal = 10 miles Ttotal = 5 hours Save = 10mi/5hr