-2x+19+12x=49 solve for x

x = 3

Step-by-step explanation:

49 - 19 = 30

-2x - 12x = 10x

30 / 10 = 3

X=3

Step-by-step explanation:

Combined liked term

Move constant to the right

Subtract the number

Divide both side by 10

Step-by-step explanation:

Function 'f' represents the number of miles (y-values) covered by the helicopter in 'x' (x-values) minutes.

f(x) = 40 - 2x

For x = 0,

f(x) = 40 miles

For f(x) = 0,

0 = 40 - 2x

x = 20 minutes

This shows that helicopter traveled 40 miles in 20 minutes.

Similarly, given graph shows distance covered by the jet on y-axis and duration of flight on x-axis.

For x = 0,

f(x) = 500 miles

For f(x) = 0,

x = 100 minutes

Commercial jet traveled 500 miles in 100 minutes.