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alexira [117]
3 years ago
6

Please explain how to check the solution for y=x-3

Mathematics
1 answer:
adell [148]3 years ago
4 0

Answer:

Just put it in the format and you will eventually find it.

Step-by-step explanation:

Hope this helps.

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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

5 0
3 years ago
Determine the slope of the line that passes through the points (-4, 6) and (0,4).
gavmur [86]

Answer:

B.) m=-\frac{1}{2}

Step-by-step explanation:

use the slope rule

\frac{rise}{run} \\\\\\frac{y2-y1}{x2-x1}

Fill in values

\frac{4-6}{0-(-4)}

Simplify

\frac{-2}{4}\\-\frac{2}{4}

Simplify further

m=-\frac{1}{2}

Done.

3 0
3 years ago
Read 2 more answers
An apple has a mass of 150g and a volume of 100cm cubed find its density
BartSMP [9]
Divide <span>150:100 to find out what the density in g/cm3 is. So 150:100 = 1.5 g/cm3</span>
8 0
3 years ago
in 1996,Donovan Bailey of Canada ran the 100 meter dash in 9.84 seconds.How fastis that to the nearst second?to the nearst tenth
Fofino [41]
I think that you round to 9.80 seconds. Pardon me, I didn't understand the problem well
7 0
3 years ago
In a certain Algebra 2 class of 27 students, 5 of them play basketball and 12 of them play baseball. There are 2 students who pl
drek231 [11]

Answer:

p= \frac{22}{27} =0.814 = 81.4%

Step-by-step explanation:

8 0
3 years ago
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