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Goryan [66]
3 years ago
15

The ages (in years) of the students in two ballet classes are shown below.

Mathematics
1 answer:
inessss [21]3 years ago
6 0

Answer:

Compare two multi‐digit numbers based on meanings of the digits in each ... Base 10 blocks are often used in class to help students grasp number. ... Example: Fifteen is 15. ... Example: 14,009: the number name is fourteen thousand, nine ... 12 23. 4 3 2 7 2 3. 2 1 2 5 x 2 x 7 x 2 x 6 x 1 2 x 9 7. 24 161 8 6 4 4,338 4 2 1 7 5.

Step-by-step explanation:

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The sum of x and it’s opposite is always zero?
jeka94

Answer:

1) Let's consider the first case with the number 0 the oppose is also 0 and we have that 0-0=0 so then applies

2) Now let's consider any real number a no matter positive or negative we will have that:

a-a =0

Or in the other case:

-a -(-a) =-a +a=0

So then we can conclude that the expression is a general rule and is true

Step-by-step explanation:

For this case we can verify if the following expression is true or false:

The sum of x and it’s opposite is always zero?

If we want to proof this we need to show that for any number is true.

1) Let's consider the first case with the number 0 the oppose is also 0 and we have that 0-0=0 so then applies

2) Now let's consider any real number a no matter positive or negative we will have that:

a-a =0

Or in the other case:

-a -(-a) =-a +a=0

So then we can conclude that the expression is a general rule and is true

5 0
3 years ago
Mark's brother is 5 years older than Mark. Their combined ages add up to 23. How old is Mark?
anygoal [31]

Answer:

Mark would be 9

3 0
3 years ago
Read 2 more answers
–2 • (4) – 3 • (–5)<br><br> 7<br> 55<br> -23<br> -120
konstantin123 [22]
The answer is 7
hope this helps!
4 0
3 years ago
Read 2 more answers
What is the ratio equivalent to 0.l
NeTakaya
1 / 10 is the easiest answer. Remember ratios are just percentages. It could also be 2/20, 3/30, as long as it is 10%.
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3 years ago
What's the answer to this problem
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12 inches is the answer im sure
7 0
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