Steve's doctor has advised him to take protein supplements. he bought two brands, brand a and brand b. the table gives the amount of calcium, iron, and vitamins (in milligrams per spoonful) in each of the two brands.

brand calcium iron vitamins
a 5 4 7
b 4 6 4

steve needs to take at least 24 milligrams of calcium, 15 milligrams of iron, and 16 milligrams of vitamins. which ordered pairs of values are solutions for the given system inequalities? select all the correct answers.

a) (1, 4)
b) (1, 5)
c) (2, 3)
d) (3, 2)
e) (4, 1)

(1,5) and(4,1).

Step-by-step explanation:

Given :

BrandCalciumIronVitamins

A                547

B                464

Let x be the quantity of brand A

Let y be the quantity of brand B

Steve needs to take at least 24 milligrams of calcium, 15 milligrams of iron, and 16 milligrams of vitamins.

So, equation becomes:

Now plot the given inequalities on the graph

Refer the attached graph

Thus the points lies in the feasible region are (1,5) and(4,1).

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.