Asupersonic jet was flying at a constant velocity starting 8,400 kilometers west of u. s. airspace. it
flew one-third of the way to u. s. airspace in 2 hours. what was the jet's velocity?
write your answer as a whole number.

1,400 km/hr

Step-by-step explanation:

One third of the distance 8,400 km is 2,800 km.

The unit rate (speed) of the jet is therefore

2,800 km

= 1,400 km/hr

  2 hr

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to