We will first find the slope of the line from those 2 points, then write the equation of the line in slope-intercept form, solving for b, the y-intercept.
So the slope is -2/3. We will choose a point now to use in the slope-intercept equation. I'm picking the one with no negatives (cuz who likes negatives!?).
which simplifies down to
13 = -4 + b so
b = 17
The y-intercept of the line that goes through those 2 points is (0, 17)
Simply set up a proportion. 1/3 = x/48. Cross multiply afterwards. 48 = 3x. Solve the equation. x = 16. By using proportions which is another form of a ratio you can easily find out that there are 16 adults at the school. Hope this helps :))
The perimeter of a square is the sum of its sides. Then the perimeter is P = 4L Clearing the side we have: L = (P / 4) L = (12x + 52) / 4 L = 3x + 13 answer: The side length of the square is 3x + 13 units
