1)
Which number is NOT in the solution set of x + 8 > 15?
A)
6
B)
8
C)
10
D)
12

Answer:

It is wrong because she should simplify both sides of the equation,distribute, combine like terms,subtract and divide to get the final answer.

4x−2(3x−4)+4=−x+3(x+1)+1

Step 1: Simplify both sides of the equation.

4x−2(3x−4)+4=−x+3(x+1)+1

4x+(−2)(3x)+(−2)(−4)+4=−x+(3)(x)+(3)(1)+1(Distribute)

4x+−6x+8+4=−x+3x+3+1

(4x+−6x)+(8+4)=(−x+3x)+(3+1)(Combine Like Terms)

−2x+12=2x+4

−2x+12=2x+4

Step 2: Subtract 2x from both sides.

−2x+12−2x=2x+4−2x

−4x+12=4

Step 3: Subtract 12 from both sides.

−4x+12−12=4−12

−4x=−8

Step 4: Divide both sides by -4.

−4x−4=−8−4

x=2

Answer:

x=2

Answer:

it is in order to combine like terms on one side of the equation, the inverse operations must be used

Step-by-step explanation:

trust me I took it on edge

Answer: 13 feet

Step-by-step explanation:

Answer:

they're at 7 feet below sea level

Step-by-step explanation:

it starts at -30 sea level then goes to -15 sea level and they dive again to end up at -20 sea level but they rise 13 so they end up at -7

Answer:

see explanation

Step-by-step explanation:

The 2 angles are adjacent and supplementary, thus

2x + x + 84 = 180 , that is

3x + 84 = 180 ← required equation

Subtract 84 from both sides

3x = 96 ( divide both sides by 3 )

x = 32

Thus

∠ 1 = 2x = 2(32) = 64°

∠ 2 = x + 84 = 32 + 84 = 116°

Answer:  Choice C.  [tex]x \ge -3[/tex]

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

Explanation:

The domain is the set of all allowed x inputs.

Here we see that x = -3 is the smallest x value possible as it is from the left-most point. The graph goes on forever to the right, so there is no largest x value. Effectively infinity is the largest x value even though infinity is not a number.

We can say the domain is [tex]-3 \le x < \infty[/tex] which can be simplified to [tex]-3 \le x[/tex] or [tex]x \ge -3[/tex]

In short: x can be -3 or larger.

Answer:

for y=-8sin(3x)

Amplitude = 8

Answer:

8

Step-by-step explanation:

amplitude =8

|sin (3x)|≤1

so |-8 sin (3x)≤8

Answer:

CE..AE...Segment addition postulate

Step-by-step explanation:

i got these answers from the quiz

Answer:

1.A  

2.C

3.A

Step-by-step explanation:

Edgen2020

Answer:

Car b

Step-by-step explanation:

It has gone a farther distance in a shorter amount of time.

Answer: car B

Step-by-step explanation: The graph shows two sides time and distance you can see car B is further on the graph by time and distance car A traveled a shorter distance.

Answer:

x(x+6)

which is 2

Step-by-step explanation:

Im new can u pls mark me brainliest

Answer:

254.94

Step-by-step explanation:

Answer:

253.94

Step-by-step explanation:

I added the whole numbers then added the decimals separate. After that I ad Dee we the decimals and the whole numbers and got 253.94.

Answer:

-1 option D (no solution)

Step-by-step explanation:

2(x + 7)2/3 = 8

2(X+7)2/3=8

4(X+7)=24

4x+28=24

4x=24-28

4x=-4

X=-4/4

X=-1

So the answer is -1

Answer:

(-2,3) if your doing substitution

(-2,3) for Elimination

Step-by-step explanation:

Answer:

28

gotta divide

Step-by-step explanation:

Given:

Total number of tickets = 80

Ratio of winning tickets to losing tickets is 2 : 8.

To find:

The number of tickets of each kind in the bag.

Solution:

Let the number of winning and losing tickets are 2x and 8x respectively.

Total number of tickets = 80

[tex]2x+8x=80[/tex]

[tex]10x=80[/tex]

Divide both sides by 10.

[tex]x=\dfrac{80}{10}[/tex]

[tex]x=8[/tex]

Now,

Winning tickets : [tex]2(8)=16[/tex]

Losing tickets : [tex]8(8)=64[/tex]

Therefore, the winning and losing tickets are 16 and 64 respectively.

Answer:

y = 2 - 2x

Step-by-step explanation:

Answer:

A. y = -2x + 2

Step-by-step explanation:

4x + 2y = 4

Move 4x to the other side of the equation.

2y = 4 - 4x

Divide the whole thing by 2 to get y by itself.

y = 2 - 2x

which can also be written as

y = -2x + 2

Hope this helps! :)

Answer:

2

Step-by-step explanation:

parallel lines have same slope.

y = 2x + 5

y = mx + b

m is the slope

b is y-intercept

Answer:

the answer would be 210:40

Step-by-step explanation:

Hey there! It would be 44% decrease...

Explanation:

So we know that 9 would be 100%. So what is the percent of change?

So let divide 5 with 9. 5 divide 9 would be 0.56.

Great, now we can subtract 100 with 0.56 since we know that 56% is 5. 100-56 is 44. This means that the percent decrease would be 44%.

Final Result: 44%

The percent change from 5 to 9 is 80%.

Percentage is a measurement to find the value of a given number out of hundred.

Given that,

The original number is 5.

The number changes to 9 .

Increase in number = 9-5 = 4

The percentage change = 4/5×100 = 400/5 = 80%

The percentage change is 80% from 5 to 9.

To learn more on Percentage:

https://brainly.com/question/24120406

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Answer:

n>6

Step-by-step explanation

add two to both sides so far its n/2>3

multiply both sides by 2

n>6

Answer:

y = 4x - 2

Step-by-step explanation:

Formula: y = mx + b

Parallel means same slope as original and b is -2.

Answer:

$655.61 is the new price. it was decreased in price by 65%

Step-by-step explanation:

A percentage is a number or ratio that can be expressed as a fraction of 100.

The percent discount on a damaged compact car is 35%.

A percentage is a number or ratio that can be expressed as a fraction of 100.

We have fractions for different percentages.

50% = 1/2

20% = 1/5

25% = 1/4

10% = 1/10

We have,

The selling price of the compact car = $27,500

The discounted price of the damaged compact car = $17,875

The discounted percentage of the car:

= (27,500 - 17,875) / 27,500 x 100

= 9625 / 27500 x 100

= 35%

Thus the percent discount on a damaged compact car is 35%.

Learn more about percentages here:

https://brainly.com/question/11403063

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Answer:

3a=6-3

Step-by-step explanation:

if you have the equation 3a + 3 = 6, you have to move 3 to the other side of the equation to isolate it. To do this, you subtract 3 from both sides giving you 3a=6-3

Hope this helped

Answer:

(1) 4 (2) -2

Step-by-step explanation:

Answer:

C. 2x-8

Step-by-step explanation:

You combine like terms so you will combine 3x and the -x which makes 2x. you then combine the +5 and the -13 which results in -8. The end result is 2x-8

Answer:

C. 2x - 8

Step-by-step explanation:

Step 1: Group like terms

5-8=2

3x - x =2x

Step 2: Add similar elements

2x+5-13

Step 3: Add/Stubtrct the numbers

5 - 13=-8

Answer: 2x-8

Answer:

the slope is undefined

Step-by-step explanation:

in the slope equation rise/run you can't divide by 0

Answer:

The hiking club's member count increased by 48%.

Step-by-step explanation:

We are given two data values: 25 members and 37 members. We need to determine how many members the club gained first. We can set up an equation where we solve for an unknown, or x, in this case.

[tex]25 + x = 37\\\\x = 12[/tex]

The club increased by 12 members, so now we can divide this value by the initial amount of members and multiply the decimal we receive by 100 to express it in percentage form.

[tex]\frac{12}{25} =0.48\\\\0.48 \times 100 = 48\%[/tex]

Therefore, the club's member count increased by 48%.

Answer:

25+12=37

There would be 48%.

Answer:

d is your answer hope it helps

Answer:

D is the answer

Step-by-step explanation:

Trust