The range of the function is (-♾, ♾)
Answer:
-2
Step-by-step explanation:
The slope is always the coefficient of x divided by the coefficient of y (if they are on opposite sides of the "=")
SO...
-2/1 = -2 = Slope
X=number of hours that the first plane had been traveling.
(x-2)=number of hours that the second plane had been traveling.
we can suggest this equation:
500x+550(x-2)=3100
Now, we can solve this equation:
500x+550(x-2)=3100
500x+550x-1100=3100
1050x=3100+1100
1050x=4200
x=4200/1050
x=4
Answer:
Equation: 500x+550(x-2)=3100
The amount hours, after the first plane left , when the planes will be 3100 miles would be 4 hours.
Time = distance / speed
time = (1000 mi)/(126.3702 mi/h) ≈ 7.913 h
