Marlena solved the equation 2x + 5 = –10 – x. Her steps are shown below.

2x + 5 = –10 – x

3x + 5 = –10
3x = –15
x = –5

Answers

Answer 1

Answer:We are asked to evaluate Marlena's solution in solving the expression below: 2x+5 = -10 -x

The first step is to re-write the expression and transpose same terms in the left side while all numbers are transferred to the right side such as shown below:

Step 0: 2x+5 = -10 -x

Step 1: 2x + x = -10 -5

Step 2: 3x = -15

Step 3: x =-15/3

The answer is x=-5.

Step-by-step explanation:

Answer 2

Answer:

-5

Step-by-step explanation:


Related Questions

what 24 times 52 and 45 times 34

Answers

Answer:

2778

Step-by-step explanation:

The answer is 1,909,440

Please mark as brainliest

A genius society requires an IQ that is in the top 2% of the population in order to join. If an IQ test has a mean of 100 and a standard deviation of 15, which of the following could be used as the minimum qualifying score to join the genius society? 115 130 145 160.

Answers

The minimum qualifying score to join the genius society is 130, the correct option is B.

What is the minimum qualifying score?

In the top 2%, you have to have an IQ higher than 98% of the population (100% - 2%). This is also known as the 98th percentile.

Given

A genius society requires an IQ that is in the top 2% of the population in order to join.

If an IQ test has a mean of 100 and a standard deviation of 15.

For this problem, you are given the probability and need to determine the raw score.

For the probability, go to the z–table and find the probability that is closest to 0.98. Then look across the row and up the column to determine the z-score.

The closest probability is 0.97982 and that corresponds to a z-score of 2.05.

With a z-score of 2.05, you can use the z formula to compute the raw score.

[tex]\rm z-score=\dfrac{X- mean }{Standard \ deviation}\\\\2.05=\dfrac{x-100}{15}\\\\2.05 \times 15 = x-100\\\\30 +x-100\\\\x=100+30\\\\x = 130[/tex]

Hence, the minimum qualifying score to join the genius society is 130.

To know more about z-score click the link is given below.

https://brainly.com/question/13299273

POLYNOMIALS MULTIPLICATION 2

(3x-1) (x^2-4x+5)

What is the product of the polynomials in standard form?

Answers

it’s on the bottom ~~~

Explain, please, and answering

Answers

Answer:

86 degrees

Step-by-step explanation:

Alrighty, a simple 180-degree triangle, we can see that the two angles add up to 86, so what would make our angle G1 94 since 180-86 = 94, but we are tasked with finding the other side of that angle, let's call it G2, what should we do?

Since this is a flat 180-degree line, we do it again!

180-94 = 86 degrees

And there ya have it

Though, if you need the technical side, it's because a whole of a triangle is 180 degrees

Given that angles F is 58 and E is 28, we add those two up to find angle EGF. How to find EGF you ask? Simple- 180 degrees (Because it's a triangle) minus 86 (Added angles of E and F), that would equal 94.

Now, we are tasked with finding TGF. We do not have TGF but we have EGF. Learning that, we see the line ET, indicating that we have found ourselves a 180-degree line. What do we do with this line? We use it to calculate TGF with EGF

Since EGF is 94, we take the 180 - 94 to equal 86, and that is how you find TGF

simplify the expression

22-50+2

Answers

the answer is.....

-26

Please help! First to answer with full explanation gets Brainliest! ​

Answers

Answer:

option 1 is true. y^5/8

Write 2.03x10 to the power of 6
Without using scientific notation

Answers

Step-by-step explanation:

2.03×10 is the scientific notation of this number.

Marilyn grade on her math test teacher was 24/60. What was her percentage?

Answers

Answer:

40%

Step-by-step explanation:

soln24/60 ×100%24/3×58×540% answer

Find the 62nd term of the arithmetic sequence -27, -21, -15, ...−27,−21,−15,

Answers

Answer:

339

Step-by-step explanation:

Can someone help me with this problem
I don't understand.

Answers

E) distributive property

Because you are distributing the 3 to 2/5x and 7/5y

Multiply 400 and 45.2 together.
Round to the nearest hundredth when necessary.
Answer:

Answers

Answer:

445.2 i think

Step-by-step explanation:

If you invest $5,000 at 1.8 percent for 5 years, compounded semi-annually, what is the amount in the account at the end of 5 years?


$5,450


$5,469


$5,470


$5,560

Answers

Answer: B: $5,469

Step-by-step explanation:

Here is the formula for compound interest:

CI = P(1 + r/n)^rt, where n is the number of times the interest is compounded in a year. In our case, since there is semi annual compounding, n = 2.

The rest of the formula can be filled out:

CI = 5000(1 + 0.018/2)^(5x2)

CI = 5000(1.009)^10

CI = 5000(

.: CI ≅ $5468.67

Thus the answer is B.

How many ml of a 50% sugar solution must be mixed with 10 ml of a 68% sugar solution to make a 62% solution?

Answers

Answer:

well first we need to see the total percent of sugar solution there is.

So first we need to add 50%+68%=118%/200%

so now 62%/100% needs translated to /200%.

We get 124%/200% Now 50%/100%=100%/200% 68%/100%=136%/200%

62% would be in a total of needed of like 7 ml of the 50% sugar solution i think let me know if i am wrong

Step-by-step explanation:

For which of the following inequalities is
x= 9 a solution?
A. 8x> 72
B. x + 52 > 64
C. 6x254
D. 9x < 81

Answers

D should be the answer

Question 3 of 15
Victor has a garden box that is 3 feet long, 4 feet wide, and į foot deep.
How many cubic feet of dirt does he need to fill the garden box completely?
A. 8
o
B. 14
C. 5
O D. 7
SUBNI

Answers

Answer:

The correct answer is D. 7

Velocity of a plane is 500 miles per hour west. What’s the speed of the plane?

Answers

The speed of the plane is 500 miles per hour

Answer:

500 miles per hour

Step-by-step explanation:

Velocity is just speed with direction get rid of the direction and you have the speed.

legit only or u get banned

Answers

Angles 1 is also 105°

Javier sold 457 tickets for the school play. Student tickets cost $2 and adult tickets cost $3. Javier's sales totaled $1161. How many adult tickets and how many student tickets did Javier sell? O 215 adult, 242 student 0 242 adult, 215 student O 247 adult, 210 student О 210 adult, 247 student​

Answers

Answer:

C

Step-by-step explanation:

trust me

thanks for ansering anyone

Answers

Answer:

The point on the bottom right quadrant which is the lowest. (Look at photo.)

Step-by-step explanation:

The first coordinate always coresponds to the x coordinate and the second to the y coordinate. So here the x coordinate is 1.5 and the y coordinate is -5. All you need to do is find both of these values on the axis and find where they intercept.

I circled the correct location in the attachment.

Help please..The top said what is the missing vowel of the data table.

Answers

Answer:

15

Step-by-step explanation:

y=3x

5(x)x3=15

Answer:

The answer is 15

Step-by-step explanation:

Its a pretty easy pattern just multiply the x value by 3, so 5x3=15

Brainliest Given/Thanks/5 Star for the following;
→ No Copy
→ Explanation
a sample representative of the entire population is an
[A] Biased sample
[B] unbiased sample
[C] convenience sample
[D] free sample

Answers

Answer:

[C] convenience sample

Step-by-step explanation:

convenience sample is a sample of a entire population. It is the most commonly used sampling technique as it's incredibly prompt, uncomplicated, and economical. Convenience sampling speeds up the research process, helping you to save time and cost.

Thus, the answer is [C] Convenience Sample

~Lenvy~

Answer:

convenience sample

Step-by-step explanation:

x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052x = 1052


PLEASE CAN ANYONE SOLD THESE TWO IM REALLY CONFUSED AND NEED HELP
The picture on the top is how the question looks like if your confused what I mean buy 77 ten and 21690 seven

1. What base ten number does 21603 seven
represent?

2. Express the number 77 ten in base number

Answers

The 21603 base seven and 77 base ten are number bases

21603 base seven represents 5442 in base ten77 base ten represents 130 in base seven

How to rewrite the numbers

1. What base ten number does 21603 seven represent?

This is represented as:

[tex]21603_7[/tex]

To convert to base 10, we have:

[tex]21603_7 = 2 * 7^4 + 1 * 7^3 + 6 * 7^2 + 0 * 7^1 + 3 * 7^0[/tex]

Evaluate the sum and the exponents

[tex]21603_7 = 5442[/tex]

Hence, 21603 base seven represents 5442 in base ten

2. Express the number 77 ten in base number

This is represented as:

[tex]77_{10}[/tex]

To convert to a base number (say base 7), we have:

77/ 7 = 10 R 0

10/7 = 1 R 3

1/7 = 0 R 1

Hence, 77 base ten represents 130 in base seven

Read more about number bases at:

https://brainly.com/question/17546250

What is the minimum value of the graph of y = cos(x)?


–2Pi

–Pi

–1

0

nvm its -1

Answers

Answer:

C

Step-by-step explanation:

just took the quiz :)

C. –1, is the minimum value of the graph of y = cos(x).

What is trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Here, given that,

We have to find the minimum value of the graph of y = cos(x).

Now,

We know that the value of cosine function lies between -1 and 1.

Hence, C. –1, is the minimum value of the graph of y = cos(x).

To learn more trigonometry click:

brainly.com/question/26719838

#SPJ2

Which pair of triangles can be proved congruent by SSS?

Answers

Answer:

I think the answer is B.

Step-by-step explanation:

Answer:

I believe it is C

Step-by-step explanation:

EXPAND it please and explain
(9r-s/7)(9r+s/7)

Answers

Answer:

2. 2

81r - s/49

Step-by-step explanation: I don’t know how to explain it but yeah

( I’m probably wrong so if I am I’m sorry)

PLS H ELP ME ANSWER THIS IN THE NEXT 5 MINUTES

Answers

Answer:

Step-by-step explanation:

2 hours/x speed

2.25 hours/x+5 speed

.25 hours/5 speed

20 mph

20 miles/1 hour

40 miles/2 hours

Answer:

I think it is 9

please help i will see if i can mark brainliset

Answers

problem number one is all real numbers, so it has an infinite number of answers

problem number two is also all real numbers, so it has an infinite number of answers

Colin rolls a fair dice 66 times.
How many times would Colin expect to roll a five?

Answers

Answer:

11

Step-by-step explanation:

Because 66 ÷ 6 ( Max amount of dots on one side ) = 11

what is 2/5 of a 100 explain your answer and working out

Answers

Answer:

40

Step-by-step explanation:

divide 100 by 5 which equals 20 times that by 2

Answer:

40

Step-by-step explanation:

First we divide 100 by 5

100/5 = 20

Since there are 2/5, we multiply 20 by 2 to get our answer

20 x 2 = 40

Your answer is 40 :)

Have a great day!!

Please rate and mark brainliest!!

while attencing a school carnival you estimate the ratio between children and adults is 2:1 there are 285 adults how many children are there please help ismy birthday coming up i might get in trouble

Answers

Answer:

570

Step-by-step explanation:

If the ratio is 2:1, or children:adults, then that means there are twice as many children as there are adults. This means you multiply the number of adults by two, which wiuld give you 570.

285 × 2= 570

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