Answer:
x=2.50
Step-by-step explanation:
But I am not sure if its positive or negative.
Answer:
y = 6
y = 0
y = 0
Step-by-step explanation:

When, x = -2

y = 6
When, x = 0

y = 0
When, x = 4

y = 0
Answer:
It would take 50 minutes
Step-by-step explanation:
<u>Distance, velocity and time</u>
The speed is the rate at which the distance changes with respect to time. If x is the distance, t is the time, the speed v can be obtained by

We know the trip takes 40 minutes when traveling at 50 miles/hour. The distance can be determined by isolating x in the above equation

The given time is expressed in minutes, we need to convert it to hours. 40 minutes is
. The distance is

If the speed was 40 miles/hour, the same distance would be covered in t hours, taken from the above equation as


Josie does bc If ur looking for the unit rate u only need to find it for sherry. you will get 50 miles per hour. if that's how u mean then Josie goes faster. hope this helps