anyone can help please and quickkkk

Anyone Can Help Please And Quickkkk

Answers

Answer 1

The values of x, y, and z are 1, 2, and 3 respectively after using the substitution method.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have a linear equation in three variable:

2x + 3y - z = 5 ...(1)

4x - y - z = -1 ...(2)

x + 4y + z = 12 ...(3)

[tex]\rm \mathrm{Substitute\:}x=\dfrac{5-3y+z}{2}[/tex]   (from the equation 1 and 2)

After solving:

[tex]\rm \begin{bmatrix}-7y+z+10=-1\\ \dfrac{5y+3z+5}{2}=12\end{bmatrix}[/tex]

From the above, two equations:
y =2

z =3

Plug the above values in equation 1

x = 1

Thus, the values of x, y, and z are 1, 2, and 3 respectively after using the substitution method.

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Related Questions

Find the range of the following equation for the domain {-4, 0, 3} f (x) = -2x^2 -3

Answers

The range of the function is {-34, -2, -20}

How to determine the range?

The function is given as:

f(x) = -2x^2 - 2

The domain is {-4, 0, 3}

Substitute the domain values in the function.

f(-4) = -2(-4)^2 - 2 = -34

f(0) = -2(0)^2 - 2 = -2

f(3) = -2(3)^2 - 2 = -20

This means that the range of the function is {-34, -2, -20}

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solve these algebraic fractions please with explanation would be great ​

Answers

Answer:

look above

Step-by-step explanation:

hope it helps

y inversely proportional to x
when y=,x=9
work out an equation connecting y and x

Answers

What does y equal to? I think you had a typo

What is the length of AC? (Giving 50 Points)​

Answers

5 and shout out to the one above me :)

Step-by-step explanation:

|-2|+|3|

Distance means basically adding the 2 numbers with absolute value. Absolute value is making both numbers positive.

|-2|+|3| = 5

To check this, you add -2+5 and that is equivalent to 3.

Another way:

Another way is to to count the number of times you can skip on the number line just like I show in the image below.

Answer: Hope this help you!

5

Step-by-step explanation:

|-2|+|3|

Distance means basically adding the 2 numbers with absolute value. Absolute value is making both numbers positive.

|-2|+|3| = 5

To check this, you add -2+5 and that is equivalent to 3.

Another way:

Another way is to to count the number of times you can skip on the number line just like I show in the image below.

Brainliest?

does someone mind helping me with this question? Thank you!

Answers

Answer:

41

Step-by-step explanation:

3(4)²-2(4)+1

48-8+1

41

Answer:

y = 39

:. ? = 39

Step-by-step explanation:

let y represent ?

while x = 4

:. 3x² – 2x + 1 = y

3(4)² – 2(4) + 1 = y

3(16) – 8 + 1 = y

48 – 9 = y

39=y

Find the amplitude of this function.​

Answers

The amplitude is 2.5

Equation:

the equation to find the amplitude is (max-min) / 2.

using this equation, it would be (4 - (-1)) / 2

5 / 2 = 2.5

A jazz concert brought in $153,500 on the sale of 7,500 tickets. If the tickets sold for $15 and $25 each, how many of each type of ticket were sold?
The number of $15 tickets is

Answers

Answer:

the answr is 87 jistg ebcaujse

Step-by-step explanation:

3,500 tickets were sold for $15 each and 4,600 tickets were sold for $25 each.

Let x be the number of $15 tickets and y be the number of $25 tickets.

We know that:

x + y = 7,500 (the total number of tickets sold)

15x + 25y =  153,500 (the total amount of money made from ticket sales)

We can use the first equation to express y in terms of x:

y = 7,500  - x

We can substitute this expression of y into the second equation:

15x + 25(7,500  - x) = 153,500

Solving for x:

15x + 25(7,500) - 25x =  153,500

15x + 187500 - 25x =  153,500

-10x = -34,000

x = 3400

Therefore, 3,400 tickets were sold for $15 each and  7,500 - 3,500 = 4000 tickets were sold for $25 each.

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Sally has 90 apples and she adds a double of what she subtracts. Now, she has 1/4 of 1000. How much does she add?

Answers

Answer:

I think it's 160...

Step-by-step explanation:

1/4 of 1000 is 250

250

- 90

____

160

f(4)=
V
If g(x) = 2, x =
V

Answers

By looking at the given graph, we can see that:

f(4) = -10g(x) = 2 if x = 0.

How to identify the value of the function?

First, we want to find the value f(4). To get that, we need to look at the graph and see the y-value of the function f(x) when x = -4.

By looking at the graph, we can see that f(4) = -10.

Now we know that g(x) = 2, and we want to find the value of x.

Then we need to see the x-value such that g(x) = 2, by looking at the graph of g(x), we can see that it is equal to 2 in the vertex, which is at x = 0.

Then g(x) = 2 when x = 0.

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solve 2(x+7) +3 (x+1)

Answers

Answer:

5x +17

Step-by-step explanation:

Simplify step by step:

2( x+7 ) +3 ( x+1 )

We'll distribute:

= ( 2 ) ( x )  +  ( 2 ) ( 7 ) + ( 3 ) ( x ) + ( 3 ) ( 1 )

= 2x + 14  + 3x + 3

We'll Combine Like Terms:

= 2x + 14 + 3x + 3

= ( 2x + 3x ) + ( 14 + 3 )

= 5x + 17 Answer!

Answer:

Step by step Explanation:

2(x+7) +3(x+1)

Open the brackets (multiply outside number by the numbers and letters inside the brackets)

2x + 14 + 3x+ 3

Collect like terms (collect ones that look alike in one side )

2x + 3x + 14 + 3

Add the like terms (add the ones that look alike)

= 5x + 17 (Answer)

I hope you understand it, it's really simple just work step by step.

Good luck ✅.

Question 14 of 16
Identify the domain of the function shown in the graph

A. All positive integers
B. All real numbers
6. All positive real numbers
D. X>=0

Answers

B, because you would just assume the line continues forever on both sides.

Find k.
10 mi
60⁰
K
30⁰

Answers

K is 90. It’s a 30,60,90

27-(2c+3) = 2(c + 7) + c

Answers

Answer:

c=2

Step-by-step explanation:

We can first take out the parenthesis: 27-2c-3=2c+14+c. We can combine: -2c+24=3c+14. Then, we can subtract 14 from both sides: -2c+10=3c. Then, we can add 2c on both sides: 10=5c. To find c, we can do 10/5=2.

How many tickets did Airon sell in 2018?

Answers

Answer:

11320 is the answer .hope i help you

I WILL GIVE BRAINLIEST
My mother pays my brother twice as much allowance each week as she pays me because he cleans the bathrooms. Together we get $24 each week. How much is my brother's allowance each week?

A. $4.00

B. $8.00

C. $16.00

D. $24.00

Answers

Answer:

C is the answer

Step-by-step explanation:

16+ (16/2)=16+8=24

Simplify this expression.
7
12
43
36
37
36
es
A)
B)
C)
D)
11
12
003
8
33

Answers

d

Step-by-step explanation:

Math!! finding volume of prisms

Answers

The volume of the rectangular prism will be 16.2 cubic ft.

How to find the volume of a right rectangular prism?

Suppose that the right rectangular prism in consideration be having its dimensions as 'a' units, 'b' units, and 'c' units,

then its volume is given as:

V =  a x b x c unit^3

The dimensions of the given rectangular prism;

Length = 2.7ft

Width = 3 ft

Height = 2 ft

The volume of the rectangular prism

V =  a x b x c unit^3

V = 2.7 x 3 x 2

V = 16.2 cubic ft

Hence, the volume of the rectangular prism will be 16.2 cubic ft.

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In Question 1 and Question 2, what is the distance from the center if the circle to a point on the circle? Take this idea a step further: what is the
relationship between the center of any circle and the points that lle on the circle?

Answers

Step-by-step explanation:

I don't see question 1 and 2.

but it did be way for you : the distance from the verge of a circle to a point on the circle is always the radius.

that is the whole concept of a circle : it is the line (or curve) of all points that have the same, constant distance r from a single point.

If you walk 6 blocks east, 2 blocks north, 3 blocks west and 4 blocks south, then what is the total distance you travel?

Answers

Answer:

6 + 2 + 3 + 4 = 15

so 15 blocks

a block is about 0.05 miles

so 15 blocks in miles is 0.75 miles

0.75 or 3/4 miles = 1320 yards

Question 7(Multiple Choice Worth 1 points)
(02.05 LC)

Given f(x) and g(x) = f(x + k), use the graph to determine the value of k.

Two lines labeled f of x and g of x. Line f of x passes through points 0, 4 and negative 4, 0. Line g of x passes through points negative 9, 0 and negative 4, 5.

−4
−5
4
5

Answers

The value of k based on the information given will be k = 2.

How to calculate the value?

It should be noted that the line of f(x) passes through the point (-4, 0) and (0, 4). The line of g(x) goes through (-2, 0) and (0, 4).

The slope of x will be:

= (4 - 0)/(0 + 4)

= 4/4

= 1

By using slope point form, y = kx + 4.

Substitute x = 2.

g(-2) = -2k + 4 = 0

2k = 4

k = 4/2 = 2

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find the area of the partial circle. use 3.14 for pi.

Answers

Radius=1cm=r

Thats a semi circle

Area

πr²/2π(1)²/2π/23.14/21.57cm²

8- Determine the midpoint of a line segment with the endpoints (8, 0) and
(4,6)
A. (3,6)
B. (7,3)
C. (6,3)
D. (7.6)
Can someone help pls ?

Answers

Answer:

C. (6, 3)

Step-by-step explanation:

Use the midpoint formula!

Midpoint Formula

[tex]\text{midpoint} = (\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})[/tex]

x₁, x₂ ... x-coordinates of the endpoints

y₁, y₂ ... y-coordinates of the endpoints

Given endpoints:

(8, 0)

(4, 6)

Points are in form (x, y).

Now let's substitute the variables in the formula with our values.

[tex](\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})[/tex]

[tex](\frac{8 + 4}{2}, \frac{0+ 6}{2})[/tex]

[tex](\frac{12}{2}, \frac{6}{2})[/tex]

[tex](6, 3)[/tex]

(6, 3) is our midpoint!

Hello !!! please help me <3 will give brainle and 25 points please help !!!!

Answers

answer: 375

Step-by-step explanation:

panda bear caps: 25

they ordered 100 in total

25/100 = 1/4, a quarter

then you find a quarter of 1500

1500/4= 375

Work out the percentage change to 2 decimal places when a price of £11 is decreased to £8.

Answers

Answer:

27.27%

Step-by-step explanation:

find the change in price

£11-£8=£3

percentage change=( (change in price)÷ (original price)) ×100%

(£3/£11) × 100%

=27.27%

The performance of a cyclist in a race is affected by whether it rains or not that day. The probability the cyclist crashes is 5/8 when it rains and 1/8 when it's dry. On a given day the probability of rain is 1/3 . What is the probability that the cyclist doesn't crash on any given day? please help me

Answers

To solve this problem, we have to consider the fact that if the probability that the cyclist may crash due to some circumstance. The probability the cyclist doesn't crash at any given day is 3/8

Probability

The probability the cyclist crash when it's wet or dry will be the

[tex]P = P_w_e_t * P_d_r_y[/tex]

P(wet) = 5/8P(dry = 1/8

The probability the cyclist crash on any given day is

[tex]P = \frac{5}{8}*\frac{1}{8} =\frac{5}{64}[/tex]

we can subtract 1 from the value above to find the probability the cyclist doesn't crash at any given day

[tex]P = 1 - \frac{5}{64} \\P=\frac{3}{8}[/tex]

The probability the cyclist doesn't crash at any given day is 3/8

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10
Select the correct answer.
Which equation is equivalent to the given equation?
- 4(x - 5) + 8x = 91 - 3
OA -5x = 2
OB. 5 = 17
OC. -5x = -23
OD. 5x = -12
Recet
Next

Answers

The equation that is equivalent to the given equation is 4x = 68. No answer is correct

Equations and expressions

Equations are two expressions equated to each other. Given the equation below;

- 4(x - 5) + 8x = 91 - 3

Expand

-4x + 20. + 8x = 88

Collect the like terms

4x + 20 = 88
4x = 88 - 20

4x = 68

Hence the equation that is equivalent to the given equation is 4x = 68

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Which pair of angles are vertical angles? 6 and 5 2 and 3 1 and 3 5 and 8

Answers

Answer:

1 and 3  

Step-by-step explanation:

1 and 3 are vertical angles

Which function has the same domain as y= 2√x?
Y = √2x
Oy=2³√x
Oy=√x-2
O y = ³√x-2

Answers

The function that has the same domain as y= 2√x is (a) y = √2x

How to determine the function?

The function is given as:

y= 2√x

The above function is a square root function.

All square root functions have the same domain when they are not translated.

This means that

y = √2x has the same domain as y= 2√x  because it is not translated

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0 belongs to what family of real numbers?
Irrational
Rational, Integer, Whole
Rational
Rational, Integer, Whole, Counting

Answers

Answer:

Rational, Integer, Whole

Step-by-step explanation:

Zero(0) can be classified as a whole number, rational number, and non-negative integer.

Zero is not a counting number because every counting starts with zero and counting zero (0) means nothing.

20 points!!! Which one of the graphs represent the function?

Answers

Answer:

the second one, but I'm not sure if I'm right

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