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Vinil7 [7]
2 years ago
11

Write an algebraic expression that corresponds to "the opposite of a number "

Mathematics
1 answer:
Katarina [22]2 years ago
7 0

Answer:

  -n

Step-by-step explanation:

If n represents "a number", then the opposite of the number is ...

  -n

__

<em>Examples</em>:

The opposite of -3 is -(-3) = 3. The opposite of 10 is -10.

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2x+4y=1<br> 3x-5y=7 <br> solve the simultaneous equations
WITCHER [35]

Answer:

y= -1/2

x=3/2

Step-by-step explanation:

first isolate x

2x+4y=1

2x=1-4y

x=(1-4y)/2

subsitute it in the second equation

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4 0
3 years ago
What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?
kifflom [539]
Good night, 

<span>Irrational numbers are those that can't be expressed as a fraction:

12.89 can be expressed as: </span>\frac{1289}{100}

\frac{12}{144}= \frac{1}{12}

<span>The above numbers can be expressed as a fraction, then the logical answer is: </span>\sqrt{12}

But we will check the answer: 

\sqrt{12}= \sqrt{2^{2}*3 }  =2* \sqrt{3} =3.4641016...

As you can see we can't express that number as a fraction, so that is te correct answer.

6 0
3 years ago
Create a word problem that the equation 4x + 32 = 164 could represent.
Svetlanka [38]

It is a hot summer day, and Jade is trying to save money to buy a new shoe. She has 32 dollars, and she plans to sell smoothies at her neighborhood for four dollars a cup. At the end of the day, she is left with a total of 164 dollars in her wallet. How many smoothies did Jade sell?

3 0
2 years ago
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Convert 13 over 7 into a mixed number
zalisa [80]

Answer:

13/7

7 goes into 13 1 time

13 minus 7 equals 6

Answer 1 6/7

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Explain the difference between a whole number and an integer.
lesantik [10]

Answer:

Whole numbers are all natural numbers including 0 e.g. 0, 1, 2, 3, 4… Integers include all whole numbers and their negative counterpart e.g. … -4, -3, -2, -1, 0,1, 2, 3, 4,… Where a and b are both integers.

Step-by-step explanation:

8 0
2 years ago
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