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4 years ago

5

A small can of paint was 1/2 of a liter. That was enough to fill 1/4 of a paint sprayer .How many cans of paint would it take to

completely fill the sprayer

1 answer:

adoni [48]4 years ago

5 0

I believe it's 4. 1/2 = 1/4
so, 1/2 + 1/2 + 1/2 + 1/2 would be 4/4...

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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

What is the unit rate of 180 miles in 3 hours

Tems11 [23]

The unit rate would be:

180 mi/3h

=60 mi/h

Therefore the unit rate would be 60 miles per hour

4 0

3 years ago

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{4,1}and {6,7} find the sloped

BartSMP [9]

$\bf (\stackrel{x_1}{4}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{7}-\stackrel{y1}{1}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{4}}}\implies \cfrac{6}{2}\implies 3$

3 0

3 years ago

What is the chemical formula of water.

igor_vitrenko [27]

Answer:

Guess its H2

Step-by-step explanation:

prove me wrong

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3 years ago

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A. 5 ft 1 in. to 5 ft 6 in.<br> Find the percent<br> Plssss...I will give u Brainliest

rjkz [21]

Answer:

For a man 5'1 - 5'3 is 1 percent 5'4 is 3%, 5'5 is 4%, and 5'6 is 6%. For a female 5'1 is 7% 5'2 is 12%, 5'3 is 17%, and 5'4 is 17%, 5,5 is 12%

Step-by-step explanation:

8 0

3 years ago