3.
A train can travel 360 miles in 4 hours. How much time will it take
travelling 585 miles?​

6.5 hours

Step-by-step explanation:

We can write a ratio to solve

360 miles      585 miles

=

4 hours         x hours

Using cross products

360 * x = 4* 585

360 x = 2340

Divide each side by 360

x = 2340/360

x =6.5

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2