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3 years ago

Please help.........

Mathematics

2 answers:

melomori [17]3 years ago

5 0

Question one would be, “A”
Question two would be, “B”

True [87]3 years ago

3 0

Answer:

1. it will be a

2. It will be c

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Solve for x: 3x - 4 = 23<br><br> Answer: x =

krok68 [10]

Answer:x=9

Step-by-step explanation:

3(9)=27

27-4=23

4 0

3 years ago

Read 2 more answers

An animal feed to be mixed from soybean meal and oats must contain at least 168 lb of protein, 27 lb of fat, and 14 lb of minera

atroni [7]

Answer:

The animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats

$Cost = 51.275$

Step-by-step explanation:

The given parameters can be summarized as:

$\begin{array}{cccc}{} & {x} & {y} & {Total} & {Protein} & {70} & {21} & {168} &{Fats}& {9} & {7} & {27} & {Minerals} & {7} & {1} & {14}& {Cost} & {21} & {7} & {} \ \end{array}$

Where: x = Soybeans and y = Oats.

So, the system of equations are:

$70x + 21y = 168$

$9x +7y = 27$

$7x + y = 14$

$Cost = 21x + 7y$

The best way to solve this, is using graph

Plot the following equations on a graph, and get the points of intersection:

$70x + 21y = 168$

$9x +7y = 27$

$7x + y = 14$

From the attached graph, we have:

$(x_1,y_1) = (1.636,2.545)$

$(x_2,y_2) = (1.775,1.575)$

$(x_3,y_3) = (2.023,1.256)$

Substitute each of the values of x's and y's in the cost function to get the minimum cost:

$Cost = 21x + 7y$

$(x_1,y_1) = (1.636,2.545)$

$Cost = 21 * 1.636 + 7 * 2.545$

$Cost = 52.171$

$(x_2,y_2) = (1.775,1.575)$

$Cost = 21 * 1.775 + 7 * 1.575$

$Cost = 48.3$

$(x_3,y_3) = (2.023,1.256)$

$Cost = 21 * 2.023 + 7 * 1.256$

$Cost = 51.275$

The values of x and y that gives the minimum cost is:

$(x_2,y_2) = (1.775,1.575)$

and the minimum cost is:

$Cost = 48.3$

Hence, the animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats

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3 years ago

Situation: to compute the perimeter of a rectangle you find the sum of two times

Alex_Xolod [135]

Answer:

110

Step-by-step explanation:

$30 + 25 \\ = 55 \times 2 \\ = 110$

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3 years ago

Is the histogram symmetric, skewed right, or skewed left? Explain your answer .

belka [17]

Answer:

It’s skewed left

Step-by-step explanation:

The main mass of the graph is on the left. Follow the shape of the graph to find this

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3 years ago

A study of fish is being conducted in a pond. They marked 30 fish and released them. The next day, they counted 75 fish, 25 of t

Nady [450]

We estimate that 25/75 = 1/3 of the fish in the pond are marked.

So an estimate would be 30 / 1/3 = 30*3

= 90 answer

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4 years ago