Solve.
2x+y+z=−4
3x+2y−z=6
x+2y−3z=2

Enter your answer, in the form (x, y, z), in the boxes in simplest terms.

Answer:

[tex]13\frac{1}{8}[/tex]

Step-by-step explanation:

Given expression:

[tex]\left(-5 \frac{5}{8}\right) \cdot \left(-2 \frac{1}{3} \right)[/tex]

Convert the mixed numbers into improper fractions by multiplying the whole number by the denominator, adding it to the numerator of the fraction, and placing this as the numerator:

[tex]\implies -\dfrac{5 \cdot 8+5}{8} \cdot -\dfrac{2 \cdot 3+1}{3}[/tex]

[tex]\implies -\dfrac{40+5}{8} \cdot -\dfrac{6+1}{3}[/tex]

[tex]\implies -\dfrac{45}{8} \cdot -\dfrac{7}{3}[/tex]

[tex]\textsf{Apply the fraction rule} \quad \dfrac{a}{b} \cdot \dfrac{c}{d}=\dfrac{a \cdot c}{b \cdot d}:[/tex]

[tex]\implies \dfrac{-45 \cdot -7}{8 \cdot 3}[/tex]

[tex]\implies \dfrac{315}{24}[/tex]

Convert the improper fraction into a mixed number:

[tex]\implies 315 \div 24 = 13\: \text{r}\:3[/tex]

[tex]\implies 13\frac{3}{24}[/tex]

[tex]\implies 13\frac{1}{8}[/tex]

Answer:

Product = 13 1/8

Step-by-step explanation:

The equation is,

→ (-5 5/8) × (-2 1/3)

Now the product of equation will be,

→ (-5 5/8) × (-2 1/3)

→ (-45/8) × (-7/3)

→ (-15 × -7)/8

→ 105/8

→ 13 1/8 {mixed fraction}

Therefore, the product is 13 1/8.

Using proportions, it is found that 240 doughnuts were there in all at the beginning of the day on Tuesday.

The percentages are missing and are given in the graph at the end of the answer.

A proportion is a fraction of a total amount, and equations can be built to find the desired measures using the unit rates and operations such as multiplication and division.

One example of application of proportions is for percentage problems, as the decimal equivalent of the percentages are used to find either the equivalent amount or the total amount, by multiplication operations.

The percentages of doughnuts displayed are given as follows:

Hence 45% of the total amount is equivalent to 108 doughnuts, hence:

0.45n = 108.

n = 108/0.45

n = 240.

Which is the number of doughnuts that were there in all at the beginning of the day on Tuesday.

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Answer:

Step-by-step explanation:

Answer: 20

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

it is divisble by 1, 2, 4, 8, 89, 178, 356, 712

Answer:

V = 86.06

Step-by-step explanation:

V = u + 9.8t

V = 4.7 + 9.8(17)

V = 86.06

Answer:

28.4707 is rounded up to 28.5

Explanation: you have to round up any number higher than 5 to the number on the left

Answer:

19 in and 35 in

Step-by-step explanation:

Let the width be w and the length be 2w-3. Then,

[tex]2(w+2w-3)=108 \\ \\ 3w-3=54 \\ \\ 3w=57 \\ \\ w=19 \\ \\ \implies 2w-3=35[/tex]

Answer:

192 [in²]

Step-by-step explanation:

Area=(4*4)*2+(4*10)*4=192.

Answer: 227=4x+127

x=$25

Step-by-step explanation:

227=4x+127  ==> equation

227-127=4x+127-127

4x=227-127

4x=100

4x/4=100/4

x=100/4

x=$25

Step-by-step explanation:

it made £12,858.56.

the costs were £6,429.28

so, the profit was

12,858.56 - 6,429.28 = £6,429.28

since cost and profit are equal, that means they are both exactly half of the total income.

and half means 50%.

formally, to do the full % calculation :

100% = 12,858.56

1% = 100%/100 = 12,858.56/100 = 128.5856

how many % are 6,429.28 ?

as many % as times that 1% fits into 6,429.28 :

6,429.28 / 128.5856 = 50

so, it is 50%.

C=5

Explain explain Explain

Answer:

The information that I do not need is how much the customer gave the parking attendant.

The garage charged $5.00

Step-by-step explanation:

2 + .75h       h stands for the number of hours the car was parked.

2 + .75 (4)

2 + 3 = 5

The set of points on this graph is a relation but not a function

We know that every function can be a relation but every relation cannot be a function.

A relation means the connection between the input and the output.

A function means that for every input there should only be one output.

Here, we have the data as:

(2,5), (1,2), (3,4), (3, 1), (6,5) and  (5,3)

We can say that it is a relation as for every input, there is an output.

But, it is not a function.

This is because the input 3 has 2 outputs as 1 and 4 which is not possible in a function.

Therefore, the set of points on this graph is a relation but not a function.

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Each person will get 1.2 of the Blueberry muffins

The number blueberry muffins in 5

6 people wants to share the 5 blueberry muffins

Therefore the number of blueberry muffins each person will get can be calculated by dividing 6 by 5

= 6/5

= 1.2

Hence each person will get 1.2 blueberry muffins if the muffins are shared equally.

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Answer: 121.176

Step-by-step explanation:

First, multiply out the decimal points. To get 408 from 4.08, multiply by a hundred. Likewise, with 29.7, multiply it by 10.

Then, do long multiplication with 408 and 297 (you get 121176 from that).

Finally, use your answer from the long multiplication and divide it by how many times you multiplied your original numbers. So, you have to divide by 100, and then also divide by 10.

From that, you get 121.176

This is just a linear equation, then the domain is the set of all real numbers and the range is the set of all real numbers.

Here we have the function:

f(x) = (x^2 + 5x + 4)/(x + 4)

The numerator can be rewritten if we find the zeros:

x = (-5 ± √( 5^2 - 4*1*4))/(2*1)

x = (-5 ± 3)/2

Then the zeros are:

x = (-5 - 3)/2 = - 4

x = (-5 + 3)/2 = -1

So the numerator can be rewritten to (x + 4)*(x + 1)

And the function is rewritten to:

f(x) = (x^2 + 5x + 4)/(x + 4) = (x + 4)*(x + 1)/(x + 4) = (x + 1)

This is just a linear equation, then the domain is the set of all real numbers and the range is the set of all real numbers.

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Answer:

The slope should be -1.

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Hope this helps!

Have a great day and God bless! :)

================================================

Work Shown:

[tex](x_1,y_1) = (1,-1) \text{ and } (x_2,y_2) = (2,-2)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{-2 - (-1)}{2 - 1}\\\\m = \frac{-2 + 1}{2 - 1}\\\\m = \frac{-1}{1}\\\\\boldsymbol{m = -1}\\\\[/tex]

--------------------

Side notes:

Slope = rise/run

rise = change in y value = [tex]y_{2} - y_{1}[/tex]

run = change in x value = [tex]x_{2} - x_{1}[/tex]

Make sure you subtract in the same order each time.

Given : Force applied is given as : 200 N

Area : 50m²

We know that the pressure is the force applied perpendicular to the surface of an object per unit area. or

=> P = 200N / 50m²

Answer:

2.89

Step-by-step explanation:

GPE = U * 1/2

GPE = 5.78 * 1/2

GPE = 2.89

Answer:

y = 12 + c

Step-by-step explanation:

Well, let's begin with what you're given, and that is that there are 12 clear ones, and there is a number of colored ones which succeeds that, which is represented by the variable c. So, we can use the equation:

y = 12 + c

To show the amount of colored ones that Vicky has in her collection, with y = number of colored crystals.

Answer:

Step-by-step explanation:

ln(xy²/z)

Answer:

(x) = 2x

Step-by-step explanation:

The missing values in the ratio are 2.5 and 17.5.

What is mean by Ratio?

A Ratio is a comparison of two or more numbers that indicates their sizes in relation to each other.

Now, The missing values are find as;

Ratio of Pounds to the weeks are;

In first column,

Pounds : Weeks = 10 : 4

In second column,

Pounds : Weeks = x : 1

In third column,

Pounds : Weeks = y : 7

Since, All ratio are equal.

Hence,

10 : 4 = x : 1

It can be written as,

10/4 = x / 1

After cross multiplication we get;

x = 10/4

x = 2.5

And,

10 : 4 = y : 7

It can be written as,

10/4 = y/7

After cross multiplication we get,

10 * 7 = y * 4

y = 70/ 4

y = 17.5

Hence, The missing values in the ratio are 2.5 and 17.5.

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Answer:

(0,3)

Step-by-step explanation:

x - y = -3

y = -1/4x + 3

x - (-1/4x + 3) = -3

x = 0

y = -1/4 x 0 + 3

y = 3

(0,3)

Answer: 24

Step-by-step explanation:

−3−6=−

4

1

​

(x+12)

Subtract 6 from −3 to get −9.

−9=−

4

1

​

(x+12)

Use the distributive property to multiply −

4

1

​

 by x+12.

−9=−

4

1

​

x−

4

1

​

×12

Express −

4

1

​

×12 as a single fraction.

−9=−

4

1

​

x+

4

−12

​

Divide −12 by 4 to get −3.

−9=−

4

1

​

x−3

Swap sides so that all variable terms are on the left hand side.

−

4

1

​

x−3=−9

Add 3 to both sides.

−

4

1

​

x=−9+3

Add −9 and 3 to get −6.

−

4

1

​

x=−6

Multiply both sides by −4, the reciprocal of −

4

1

​

.

x=−6(−4)

Multiply −6 and −4 to get 24.

x=24

Answer:

Here's a screenshot of the work i've done

Step-by-step explanation:

Your welcome

By solving a system of equations, we can see that each geranium costs 3 dollars.

First, let's define the two variables:

x = price of one rose bush.

y = price of one geranium

Now, with the information on the problem we can write two equations, thus, we will have a system of equations:

$122 = 14*x + 8*y

$120 = 12*x + 12*y

We want to solve that system, if we isolate x on the first equation we will get:

x = ($122 - 8y)/14

Now we can replace this on the other equation:

$120 = 12*($122 - 8y)/14 + 12*y

Now we can solve this for y.

14*$120 = 12*($122 - 8y) + 12*14*y

$1,680 = $1,464 + 72y

($1,680 - $1,464 )/72 = y = $3

Each geranium costs 3 dollars.

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The actual width of Tyrone's patio using the scale drawing is 16 feet's

The scale from the backyard to the drawing is 2 ft to 1 inches.

The width of the patio on the drawing is 8 inches.

Therefore, the width of the Tyrone's actual patio is as follows;

Hence,

1 inches = 2 feet's

8 inches = ?

cross multiply

actual length of Tyrone's patio = 8 × 2

actual length of Tyrone's patio = 16 feet's

Therefore, using the scale drawing, the actual length of Tyrone's patio is 16 feet's.

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