3. In a restaurant, the number of units of protein and carbohydrate in food types x andy are shown below:
protein
carbohydrate
Cost per kg
15
21
10
N 200
Mindaily
35
25
Food type
(a) What are the constraints on the types of food daily
(b) Use a graph to show the cheapest way of satisfying the minimum daily requirements.​

step-by-step explanation:

step-by-step explanation:

a

step-by-step explanation:

given the 2 equations

- x + y = - 2 → (1)

2x - 3y = 4 → (2)

multiplying (1) by 2 and adding to (2) will eliminate the x- term

- 2x + 2y = - 4 → (3)

add (2) and (3) term by term

(2x - 2x) + (- 3y + 2y) = (4 - 4), simplifying gives

- y = 0 ⇒ y = 0

substitute y = 0 in either of the 2 equations for corresponding value of x

substituting in (2) gives

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 ) → a

the quotient of the number difference of a number and 24 divided by 8 is the same as the number dived by 6

answer is 18