Write as an algebraic expression and then simplify if possible the distance traveled by a train in three hours with a constant speed of r miles per hour.

Distance = 3r

Step-by-step explanation:

We are to write an algebraic expression and then simplify it for the given situation:

The distance traveled by a train in three hours with a constant speed of r miles per hour.

We know the formula of distance linking the speed and the time.

Distance = speed × time

Substituting the given values to get:

Distance = r × 3

Distance = 3r

the square root of what number? if you add that, then someone will probably answer the question.

positive

step-by-step explanation:

the quadrant is facing upwards