Andrew is at an airport where the largest airplane weighs 3 x 10^5 pounds and the smallest airplane weighs 12,500 pounds. How many times heavier is the largest airplane than the smallest airplane?

The largest airplane is 24 times heavier than the smallest airplane.

Step-by-step explanation:

We have that the largest airplane weights pounds and the smallest airplane weights 12,500 pounds, i.e., the smallest airplane weights 12,500 = pounds. Then, if we divide the weight of the largest airplane between the weight of the smallest airplane we have . Therefore, the largest airplane is 24 times heavier than the smallest airplane.

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

i believe it's a.

i'm not sure on this one, most likely correct.