You drive along the highway at a constant speed of 50 miles per hour. How far do you travel in 3.3 hours? In 6.4 hours?

Question

You drive along the highway at a constant speed of 50 miles per hour. How far do you travel in 3.3 hours? In 6.4 hours?

Answer 1

There is a distant formula .... d = r*t

 

DISTANCE = RATE * TIME

 

Look at the units that go along ...

 

(miles)   =  (miles / hour) * (hour)

 

Look at what happens when you multiply (miles / hour) * (hour) .... the hours cancel out and you are left with miles ... which is distance!

 

 

Ok ....  let's see what you know and what you don't know ...

 

distance = ?

rate = 50 mph

time 1 = 3.3 hours

time 2 = 6.4 hours

 

We need to find the distance after time 1 and the distance after time 2 ... so let's do those separately!

 

Plug them into the equation d = r*t

 

DISTANCE = RATE * TIME

      ?        =  50    *   3.3              (solve for what is unknown)

 

      ?         = 165

 

SOLUTION: After 3.3 hours, we travel 165 miles.

 

 

Now, how far after 6.4 hours ...

Plug them into the equation d = r*t

DISTANCE = RATE * TIME
     ?          = 50 * 6.4 (solve for what is unknown)

     ?          = 320

SOLUTION: After 6.4 hours, we travel 320 miles.