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3 years ago

Which Expression is equivalent to 8x - 2y + x + x

Mathematics

2 answers:

andreyandreev [35.5K]3 years ago

7 0

We can combine x + x and get 2x. So we have:

8x - 2y + 2x

Ray Of Light [21]3 years ago

4 0

8x -2y + x+x simply combine like terms 8x+ x + x= 10x therefore 10x-2y is equivalent

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PLEASE HELPP!! (10 points)

Margaret [11]

Answer:

Gertrude, Bart, Hermione, Jojo

Step-by-step explanation:

Ok to start of lets identify the money in each bank account

I will not be using names to make this simpler.

Student A: $-100.54

Student B: $95.88

Student C: $50.00

Student D: $-120.37

Lets pretend that were not talking about money to help you understand this.

So just from glancing at this you'd think -120.37 would be the most because its the largest number correct?

Well you have to include the negative sign. The negative sign shows that this number is below 0.

Lets take a look at the other negative number.

-100.54

Greater or less than -120.37?

-100.54 is actually greater than -120.37

Why?

On a number line, the negative side, your counting back from 0. So the farther away you are from 0 for negatives, the less that number is.

So -120.37 would be the least and -100.54 would be the second least.

The greatest would be 95.88 because its greater than 50.

So the order would be 95.88, 50, -100.54, then -120.37

Just find which students that goes with and your done!

If you ever need more help don't be afraid to reach out and I hope that helps!

6 0

3 years ago

Please help me with the question below.

Misha Larkins [42]

Part A has 2
Part B has 1
Part C has 2
Part D has 1
Part E has 0

7 0

4 years ago

Which expressions simplify to a rational answer? Select each correct answer.

Alexxandr [17]

Answer: the answers are the second one and the last one

Step-by-step explanation:

5 0

3 years ago

Which of the following is the converse of the statement "If it is summer, then

Sergeu [11.5K]

Answer:

This is english not math but.....

If it is warm outside, then it is summer.

Step-by-step explanation:

Basically just switch the terms and make it grammatically correct.

5 0

3 years ago

3. There are 350 people in an office building. A local deli randomly surveyed people in the building to determine the average am

IrinaK [193]

Answer:

(a)Sample 1

The Mean = 20

The median = 25

Sample 2

The Mean = 31

The median = 60

(b) Sample 1 has the least spread

Sample 1 has the least deviations from the mean

The least representative of the population is sample 1

Step-by-step explanation:

The mean is ∑fx/∑f

∑fx = 30 + 25 + 10 + 25 + 10 = 100

∑f = 5

Mean = 100/5 = 20

For the median, we arrange the data in increasing order;

10, 10, 25, 25, 30

The median = the middle number = 25

Sample 2

The mean is ∑fx/∑f

∑fx = 5 + 60 + 10 + 30 + 50 = 155

∑f = 5

Mean = 155/5 = 31

For the median, we arrange the data in increasing order;

5, 10, 30, 50, 60

The median = the middle number = 30

(b) Sample 1 range =$30 -$10 = $20

Sample 2 range =$65 -$5 = $60

Sample 1 has the least spread

Sample 1 standard deviation = 9.354

Sample 2 standard deviation =24.083

Sample 1 has the least deviations from the mean

Mean = 24

$20, $20, $25, $25, $30

Median = $25

∑fx = 120

Therefore sample 1 align with the third sample

The least representative of the population is sample 1 with ∑fx = 100.

5 0

3 years ago