evaluate the expression for the given value of x

1. 2+x+(-7);x=8


2. x+7+(-7);x=4 ​

Answer:

50 people

Step-by-step explanation:

20 / .4 = 50

if 40% = 20

then 20% = 10

therefore 60% = 20% *3

60% = 10 * 3

60% = 30 people

hope this helps

Answer:

The common denominator is x30

Step-by-step explanation:

Answer:

[tex]30[/tex]

Step-by-step explanation:

The best choice for a common denominator will always be the least common multiple of the two denominators. In this case, the least common multiple of 5 and 6 is 30, so [tex]\boxed{30}[/tex] is the best choice.

The LCM of two numbers is the lowest integer that divides them both evenly

Answer:

The only math I see having a point is basic math like addition subtraction multiplication and division, unless you are going for a job that requires ALOT of harder math.

Answer:

174 homes

Step-by-step explanation:

152+22

simplify to get your answer:

174

Answer:

So Y, which represents height, goes down depending on how far you are in time, which is X.

The slope of the graph represents the elevator's descent speed, calculated as 12 feet per second based on the points (1, 838) and (2, 826).

The Slope of the line in the graph represents the rate of change of height with respect to time, or the speed of the elevator's descent.

In this case, the slope can be calculated using the formula: slope = (change in height) / (change in time). We know that the elevator's height changes from 838 feet at 1 second to 826 feet at 2 seconds,

So, the change in height is : 838 - 826 = 12 feet, and the change in time is 2 - 1 = 1 second.

Therefore, the slope is 12 feet/second, this indicates that the elevator is descending at a speed of 12 feet per second.

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Answer:

[tex] \pi \: 4 \: 8[/tex]

Answer:

[tex]\pi, 4, 8[/tex]

Step-by-step explanation:

Note that [tex]\pi\approx3.14[/tex]. As [tex]3<3.14<4[/tex], [tex]\pi[/tex] comes before [tex]4[/tex].

Clearly [tex]4<8[/tex], so [tex]4[/tex] comes before [tex]8[/tex].

The only possible ordering is [tex]\boxed{\pi, 4, 8}[/tex]

Answer:

[tex] \sqrt{13} [/tex]

Step-by-step explanation:

A(4;1) B(1;3)

●use distance formula (see photo^)

Answer:

If solving for x its

4 + 4x = -5(x - 8) (side math --> -5x +40)

-4. = -4

4x = -5x + 36

+5x = +5x

9x = 36

÷ ÷ (by 9)

x = 4

Step-by-step explanation:

Each equation solution, brings down another answer, making this equal x=4

Answer:

the answer:

Step-by-step explanation:

pls, crown or star. <3

Answer:x<-3

Step-by-step explanation:

-3(x+4)-8x>21

-3x-12-8x>21

-11x-12>21

-11x>33

x<-3

Answer:

[tex]1~3/4[/tex]

Step-by-step explanation:

Let [tex]k[/tex] be the amount of pork Mike uses. Then, he uses [tex]3k[/tex] beef.

We know he uses 7 pounds, of meat so we want to solve [tex]3k+k=7[/tex].

Combining like terms on the left side gives [tex]4k=7[/tex].

We can divide both sides by [tex]4[/tex] to get [tex]k=7/4=1~3/4[/tex].

So, the answer is [tex]\boxed{1~3/4}[/tex].

Answer:

(0,-1); (0,-2); (2,0); (2,-2)

Step-by-step explanation:

when rotating 180 degrees all the points have their coordinate sign's flipped.

so the points go from:

(0,1) --> (0,-1)

(0,2) --> (0,-2)

(-2,0) --> (2,0)

(-2,2) --> (2,-2)

so your new shape will have the points (0,-1); (0,-2); (2,0); (2,-2)

Step-by-step explanation:

let the 3 consecutive odd number be

x + 1 , x + 3 , x + 5

as, there sum is 45. so, after inserting the values we got,

→ x + x + 1 + x + 3 = 45

→ 3x + 9 = 45

→ 3x = 45 - 9 = 36

→ x = 36/3 = 12

→ x = 12

therefore, 3 consecutive odd number are

→ x + 1 = 12 + 1 = 13

→ x + 3 = 12 + 3 = 15

→ x + 5 = 12 + 5 = 17

hope this answer helps you dear...take care and may u have a great day ahead!

Answer:

Step-by-step explanation:

Given line:

Perpendicular lines have negative-reciprocal slopes.

We will have a line:

Use the coordinates of the given point to find the value of b:

So the line is:

Answer:

1.6t

2.12s

3.4

4.6

5.yes

6.2ss

7.10

8.x×x×x×x×x×x×x=×7

s×s×s×s=×4

9.-7

10.no

11.7

12.8×6=48

Answer:

13) ?=90°

14) ?=180°-48° (int angles, u//v)

=132°

15) ?=93° (alt angles, u//v)

16) ?=96° (alt angles, u//v)

Answer:

13: 90°

14: 132°

15: 87°

16: 84°

Step-by-step explanation:

Just subtract the value given from 180

Hope this helps!

Answer:

-3=x

Step-by-step explanation:

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

use distributive property to get:

3x+12-5=2x+4

simplify to get:

3x+7=2x+4

subtract 4 from both sides to get:

3x+3=2x

subtract 3x from both sides to  get:

3=-x

multiply both sides by -1 to get your answer:

-3=x

Answer:

4

Step-by-step explanation:

dmndndndndndnndndnndndnndndndnxmxn que la vida

Answer:

100^9

Step-by-step explanation:

100 to the 9th power because 100^3 equals 1 million. think of it as (100^3)^3

Answer:

A. 60.24

Step-by-step explanation:

I worked it out in the photo !

Answer:

Since +P looks to be 7, -P would be -7

Hope this helps :)

Answer:

-7

Step-by-step explanation:

P is a variable, and P can only have 1 value. Thanks to the number line, we know what this value is. P is positive 7. If we know that the set value of P is positive 7, then we can just treat it like it is positive 7.

P - 5 = 2

P + 3 = 10

So putting a negative sign in front of P will mean it will be

- (7)

Answer:

The number of small and large boxes purchased are:

2 small boxes.

6 large boxes.

Step-by-step explanation:

To solve the unknowns, two equations must be established with the information provided:

150X + 400Y = 2700 (the price of the boxes and the final number of nails, where X is the small boxes and Y the large boxes)

Y = 3X (Large boxes are triple the small ones)

Then equation 2 is replaced in equation one and variable X is cleared:

150X + 400 (3X) = 2700

150X + 1200X = 2700

1350X = 2700

X = 2700/1350

X = 2

Finally, the value of X is replaced in equation 2 to find the number of large boxes:

Y = 3X

Y = 3 (2)

Y = 6

PLS MARK AS BRAINLIEST :)

Answer:

y=kx

Step-by-step explanation:

Answer:

28 girls

18 boys

Step-by-step explanation:

46-10=36

36÷2=18

18+10=28

Answer:

x = 3

Step-by-step explanation:

2 + 6x = 20

6x = 18

x = 3

Hopefully this helps!

Brainliest please?

Answer:

2+6x=20

2-        -2

6x/6=18/6

=3

Step-by-step explanation:

Answer:

Yes They are Parallel.

Step-by-step explanation:

The required equation of the line y = ax + c as of the old line and also the line is parallel to the hill.

Given that,

Suppose another line for a chair lift is placed at a constant distance c below the gondola line. the equation of the new line and is the line parallel to the hill is to be discussed.

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
The required new line is placed at a constant distance c below the gondola line,
If the line has a constant distance from the other line that implies that the line is parallel, and the equation of the line is given as,
y = ax + c

Thus, the required equation of the line y = ax + c as of the old line and also the line is parallel to the hill.

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Answer:

Length=4 cm

Step-by-step explanation:

Solve for L

L*W=A

16 cm^2=L*W

Since this a square. W will equal L.

So [tex]\sqrt{16} =4[/tex]

Meaning that the length is 4    

The area of a square is given by:

Area = Side²

If the area of a square is 16 square centimeters, the side length of the window is 4 cm.

A square is a four-sided polygon, whose all sides are equal in length and whose opposite sides are parallel to each other.

We have,

Area of the square = 16 square centimeters

The area of a square is given as:

Area = side²

Area = 16 cm²

16 cm² = side²

Square root on both sides
[ 4² = 16 ]

√16 cm² = √side²

Side = 4 cm

Thus if the area of the square is 16 square centimeters, the side length of the window is 4 cm.

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