MATHEMATICS MIDDLE SCHOOL

What does how many mean a math problem is it división, multiply, or subtract, add

Answers

Answer 1
Answer:

Mean is a problem of addition and division.

What is a mean?

It is the average value of the set given.

It is calculated as:

Mean = Sum of all the values of the set given / Number of values in the set

We have,

We can consider the following set of numbers.

= 1, 2, 3, 4, 5

The mean of 1, 2, 3, 4, 5.

= (1 + 2 + 3 + 4 + 5) / 5

= 15/5

= 3

We see that,

While calculating the mean we add all the given values and divide by the number of values added.

Thus,

Mean is a problem of addition and division.

Learn more about mean here:

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Answer 2
Answer: Mean=average So add all numbers, then divide by however many numbers there are

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What is the value of x?
Plssss help me :(

Answers

Answer:I believe it’s 40 degrees

Step-by-step explanation:

70

-30

=

40
The answer is 40 degrees
Hope this helped

Today each cookie cost $0.75 less than the normal price. Right now if you buy 7 of them it will cost you $2.80. Write an equation to determine the normal price of each cookie.

Answers

x-0.75=0.40 will determine the normal price of each cookie.

Step-by-step explanation:

Cost of 7 cookies = $2.80

Cost of one cookie = (2.80)/(7)\n

Cost of one cookie = $0.40

Let,

x be the normal price of cookie

As the price today is $0.75 less than normal price, therefore,

x-0.75=0.40

x-0.75=0.40 will determine the normal price of each cookie.

Keywords: linear equation, subtraction

Learn more about subtraction at:

#LearnwithBrainly

Caleb draws 14 dogs on each of 4 posters.He draws 18 cats on each of 6 other posters. If he draws 5 more dogs on each poster with dogs, how many dogs ad cats does he draws?

Answers

14x4=56

18x6=108

5x4=20

total = 184
my answer is 184 because you have to multipy

What is the percent of increase from 25 to 35?A.
10%

B.
29%

C.
40%

D.
71%

Answers

x - the percent increase

25+25x=35 \ \ \ |-25 \n25x=10 \ \ \ |/ 25 \nx=(10)/(25) \n\Downarrow \nx=(10)/(25)=(10 * 4)/(25 * 4)=(40)/(100)=40\%

The answer is C. 40% increase.

Sue wants to use mental math to find 7 times 53. Write an expression she could use.

Answers

She could multiply 50x7 and than 3x7 and add those two together.
50 x 7 = 350
3 x 7 = 21
21 + 350 = 371

Does a polygon usually have more sides or more angles?

Answers

They would be the same. 1 side = 1 angle
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