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Leya [2.2K]
3 years ago
9

3x + 8y = -1-3x + y = -17​

Mathematics
2 answers:
Alex777 [14]3 years ago
8 0

Answer:

Point form : (5,-2)

Equation form : x=5, y=-2

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

snow_tiger [21]3 years ago
3 0

Answer:

Step-by-step explanation: what the hell

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(From Textbook) A company makes dog food out of chicken and grain. Chicken has 10 grams of protein and 5 grams of fat per ounce,
Doss [256]

Answer:

The company use 0 ounces of chicken and 100 ounces of grain in each bag of dog food in order to minimize cost.

Step-by-step explanation:

Let x be the number of ounces of chicken

let y be the number of ounces of grains

We are given that Chicken has 10 grams of protein and 5 grams of fat per ounce.

Chicken has protein in 1 ounce = 10

Chicken has protein in x ounces = 10x

Chicken has fat in 1 ounce = 5

Chicken has fat in x ounces = 5x

We are also given that grain has 2 grams of protein and 2 grams of fat per ounce

Grain has protein in 1 ounce = 2

Grain has protein in y ounces = 2y

Grain has fat in 1 ounce = 2

Grain has fat in y ounces =2y

Now we are given that . A bag of dog food must contain at least 200 grams of protein and at least 150 grams of fat.

So, equation becomes:

10x+2y\geq 200 ---A

5x+2y\geq 150  ---B

Since x and y represent the ounces .

So, x\geq 0 ---C and y\geq 0 ----D

Plot A ,B ,C and D on the graph

Refer the attached graph so , the corner points are (0,100),(10,50) and (30,0)

We are also given that chicken costs 10 cents per ounce and grain costs 1 cent per ounce

So, Cost function becomes : c=10x+y

At(0,100)

c=10x+y

c=10(0)+100

c=100

At(10,50)

c=10x+y

c=10(10)+50

c=150

At(30,0)

c=10x+y

c=10(30)+0

c=300

Minimum cost is 100 cents at (0,100)

So,  the company use 0 ounces of chicken and 100 ounces of grain in each bag of dog food in order to minimize cost.

3 0
3 years ago
Manesh is putting new tile on a kitchen counter. Each sheet of tile will cover 1.5 ft squared. How many sheets of tile will Mane
vovikov84 [41]

Answer:

I will try my best to help

Step-by-step explanation:

6 0
2 years ago
The sum of two numbers is 57 and the difference is 7. What are the numbers?
Andrej [43]

Answer:

32 and 25

Step-by-step explanation:

7 0
2 years ago
Whats the rest of this question?????????????????????????????????????????????????????????????????????????????????????????????????
uranmaximum [27]

Answer:

c) 5 pints

d) $34

Step-by-step explanation:

c) 20 / 4 = 5

d) 8 x 4 = $32

Hope that helps!

8 0
3 years ago
Read 2 more answers
$4.75 per pound. If the customer orders 5 pounds of produce how much is the customer charged
Illusion [34]
Easy you take 4.75 and multiply it by 5 and you get $23.75
3 0
3 years ago
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