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Marat540 [252]
3 years ago
13

What is the distance between the point (10,12) and (-4,-36)

Mathematics
1 answer:
dimulka [17.4K]3 years ago
4 0
Well using distance formula

d \:  =  \sqrt{(x {}^{2} }  - x {}^{1} ) + (y {}^{2}  + y {}^{1} )
The answer I got was Distance = 45.9 what ever unit of measure it might ask for. Feel free to check my math just in case.
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PetSmart.com sold the following varieties of dog food in June 2003.
aivan3 [116]

Let x  be the number of bags of Nature's Recipe Venison Meal & Rice Canine 20 percent protein, y be the number of bags of Nutro Max Natural Dog Food 27 percent protein and z be the number of bags of PetSmart Premier Oven Baked Lamb 25 percent protein a dog breeder buys. He  wants to make 300 pounds of a mix. Then

20x+17.5y+30z=300.

Now

  • in 20x pounds of Nature's Recipe Venison Meal & Rice Canine 20 percent protein is 0.2·20x=4x pounds of protein;
  • in 17.5y pounds of Nutro Max Natural Dog Food 27 percent protein is 0.27·17.5y=4.725y pounds of protein;
  • in 30z pounds of PetSmart Premier Oven Baked Lamb 25 percent protein is 0.25·30z=7.5z pounds of protein;
  • in 300 pounds of mix containing 22 percent protein is 0.22·300=66 pounds of protein.

Then 4x+4.725y+7.5z=66.

You get a system

\left\{\begin{array}{l}20x+17.5y+30z=300\\4x+4.725y+7.5z=66.\end{array}\right.

From the first equation z=10-\dfrac{2}{3}x-\dfrac{7}{12}y. Substitute it into the second equation:

4x+4.725y+7.5(10-\dfrac{2}{3}x-\dfrac{7}{12}y)=66.

Simplify it:

-x+\dfrac{7}{20}y=-9,\\ \\ 20x-7y=180.

y must be divided by 20, then

  • y=0, x=9, z=10-6=4;
  • y=20, x=16, z is not a whole number;
  • y=40, x=23,  z is not a whole number;
  • y=60, x=30, z=10-20-35<0;
  • thus, all other possible z will be <0.

Answer: 9 bags with 1st mix, 0 bags with 2nd mix and 4 bags with 3rd mix.

5 0
3 years ago
I need help plz problem attached, Thanks.
Ivenika [448]
The answer would be -1 14/15
3 0
3 years ago
Read 2 more answers
Guys does that mean multiply or like fractions?
Zepler [3.9K]

Answer:

multiply

Step-by-step explanation:

It says for you to multiply.

4 0
2 years ago
Read 2 more answers
What is the value of x+y?<br><br> Eight grade math
atroni [7]

Hello! The value of x+y is 12

Make sure to read an explanation so you can understand the solution better.

Any questions about the answer and explanation can be asked through comments.

Step-by-step explanation:

We can simply solve the system of equations by substituting x = 3y in the first equation

\large{2x + 2y = 24} \\  \large{2(3y) + 2y = 24} \\  \large{6y + 2y = 24} \\  \large{8y = 24} \\  \large{y = 3}

Therefore, the value of y is 3. Then we substitute the value of y in x = 3y.

\large{x = 3y} \\  \large{x = 3(3)} \\  \large{x = 9}

Therefore, the value of x is 9.

Since you want to find x+y, simply add 9 and 3 as we get 12.

Therefore x+y = 12.

6 0
2 years ago
Simplify: a(8 + 2b - 6)
KonstantinChe [14]

Answer:

2ab+2a

Step-by-step explanation:

3 0
2 years ago
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