A computer company can spend no more than $5,000 on raw materials for computer components. The raw materials cost $5 per ounce for aluminum and $20 per ounce for silver. To summarize the situation, a worker writes the inequality: 5a + 20s ≤ 5,000, where a is the number of ounces of aluminum material and s is the number of ounces of silver material. Which graph's shaded region shows the possible combinations of raw materials the company can buy?

step-by-step explanation:

milk=16 large

soda=280 kids

juice box=82 regular

63 soda +63 regular

124 large total

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.