A rectangular plot of ground is 5 meters longer than it is wide, It’s area is 20,000 square meters
1 answer:
I'm assuming you're looking for the dimensions of the plot. I'm going with that. ;) If the length of the plot is 5 meters longer than the width, then L = w + 5. The area for a rectangle is L*w, and we have an area value of 20,000 so our formula is 20000=(w+5)(w) and 
. We will bring the 20,000 over by subtraction and set the polynomial equal to 0 to factor and solve for w. 
Solving for w we get values of w=138.9 and -143.9. Of course the 2 things in math that will never EVER be negative are time and distance/length, so -143.9 is out. Our width is 138.9 and the length is 138.9 + 5 so the length is 143.9. And there you go! Hope that's what you needed!
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Answer:
The animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats
Step-by-step explanation:
The given parameters can be summarized as:
Where: x = Soybeans and y = Oats.
So, the system of equations are:
The best way to solve this, is using graph
Plot the following equations on a graph, and get the points of intersection:
From the attached graph, we have:
Substitute each of the values of x's and y's in the cost function to get the minimum cost:
The values of x and y that gives the minimum cost is:
and the minimum cost is:
Hence, the animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats
