how long would it take

Question

how long will it take to travel 200 miles at the rate of 80 miles per hour use the formula D=rt type the number or in fraction form 

Answer 1

Using the equation:

 

Distance = Rate x Time

 

Determine which of these values you've been given and which one you need to solve for:

 

Distance: 200 miles

Rate: 80 mph

Time: not given- this is what the question is asking you to find.

 

Rewrite the equation to solve for Time: 

 

Distance = Rate x Time

Distance/Rate = Time

 

Time = Distance/Rate

 

Here, we wanted Time by itself, so we divided both sides by Rate to cancel out the one on the right side.

Now just plug in Distance and Rate, and simplify if needed.

 

You could have also plugged the numbers in first, the solved for Time.

 

 

Answer 2

d = rt, so t = d/r

 

That's why it's called miles per hour, miles/hour.

 

200 miles/80 mph = 5/2 hours = 2 1/2 hours