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mamaluj [8]
4 years ago
13

How to teach operation steps to a word problem

Mathematics
1 answer:
Katyanochek1 [597]4 years ago
8 0
First you have to find key words that would help you understand the operation
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Write an inequality for this situation
Rainbow [258]

Answer:  E \ge 31

Reason:

"at least 31 points" means "31 or more".

So either E = 31 or E > 31 (meaning Embiid scored 31 points or he scored more than 31 points).

Choice A looks like the closest match assuming the inequality sign is \ge

Saying E > 31 instead of E \ge 31 would be false because it leaves out the case E = 31.

6 0
2 years ago
The cost in dollars of producing x units of a particular brand of notebook is C(x) = x2 – 400.
yulyashka [42]
<span>
A)
C(102) = 102^2 – 400 = 10004
</span>C(100) = 100^2 – 400 = 9600

average rate of change = (10004<span>- 9600)/(102 - 100) = 404/2 = 202

</span>B)
C' = 2x = 2 (100) = 200
8 0
3 years ago
Which of the following statements could be translated to the equation n-5=-2?
Klio2033 [76]

Answer:

The difference between a number and five is negative two.

Step-by-step explanation:

n-5=difference between a number and five

=-2 means is negative two

8 0
3 years ago
3x<br> Are 10 - 20 and 5(2 - 20) equivalent expressions? Explain.
Nutka1998 [239]

Answer:

No.

Step-by-step explanation:

Take the second expression: 5(2 - 20)

To solve, you must distribute the 5 to all terms within the parenthesis:

5(2 - 20) = (5 * 2) - (5 * 20) = 10 - 100 = -90

On the other hand:

10 - 20 = -30

∴ the two expressions are not equivalent.

3 0
3 years ago
Find the surface area of the cube and show your work please : )
Murrr4er [49]

Answer:

150 cm.

Step-by-step explanation:

There 6 squares in a cube.

**SQUARES HAVE EQUAL SIDES.**

To find the area of an individual square, multiply the side length by itself twice. (x^2)

The side lengths of the squares are 5.

5 x 5 = 25.

25 is the area of each individual square.

Since there are 6 squares in total, multiply 25 by 6.

25 x 6 = 150.

Therefore, 150 cm is the surface area of the cube.

5 0
3 years ago
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