Two cars leave the same point at the same time traveling in opposite directions. One car travels west at 20 mph and the other travels east at 60 mph. In how many hours will they be 280 miles apart? -Please provide step by step :)

3.5 hours

Step-by-step explanation:

It is given that,

Velocity of first car, v = 20 mph

Velocity of second car, v' = 60 mph

They are moving in opposite direction. Their relative speed is given by :

V = 20 mph + 60 mph = 80 mph

Distance, d = 280 miles

So,

Hene, they will be 280 mile apart in 3.5 hours.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5