Please Help A school vending machine sells cartons of milk and juice. On a typical day: No cartons are sold between 7 A. M. and 8 A. M., or from 5 P. M. onward The machine has a capacity of 100 cartons. At 7 A. M. it is three-quarters full. From 8 A. M. to 10 A. M., 10:15 A. M. to noon, and from 1 P. M. to 3 P. M. the students are in class. Students are NOT allowed to use the vending machines during class time. The machine is filled at 11 A. M. and at 4 P. M. Sketch a graph of the number of cartons in the vending machine as a function of time.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

ƒ = 0.03b

hope this ( :

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.