Question

if a person walks 2.4 miles in1.5 hours, how far can he walk in 3 hours

Answer 1

1.5 hours is half of 3 
so 1.5+1.5=3 and 2.4+2.4=4.8
That person can walk 4.8 miles in 3 hours
Hope I helped :)

Answer 2

Answer: The person can walk 4.8 miles in 3 hours.

Step-by-step explanation:Given :

A  person walks 2.4 miles in 1.5 hours.

Then, the ratio of distance to time = $\dfrac{Distance }{time}=\dfrac{2.4\ miles}{1.5\ hours}$  (1)

Let x be the distance he waked in 3 hours.

Then, the ratio of distance to time = $\dfrac{Distance }{time}=\dfrac{x\ miles}{3\ hours}$ (2)

We assume that he moves at constant rate, then from (1) and (2) , we have

$\dfrac{x}{3}=\dfrac{2.4}{1.5}$

Multiply 3 on both sides , we get

$x=\dfrac{2.4}{1.5}\times 3=4.8$

Hence, the person can walk 4.8 miles in 3 hours.