Question

Q- What is the number midway between 12345 and
54321
step by step instructions​

Answer 1

Answer:

20988

Step-by-step explanation:

Subtract the 2 numbers

54321 - 12345

= 41976

Divide by 2 to get the answer

41976 / 2

= 20988

Answer 2

Answer:

The number midway between 12345 and54321 is 333333.

Step-by-step explanation:

Here given two numbers are 12345 and 54321.

We want to find the number midway between these two numbers.

We know ,ifa and b are two numbers then the number midway between a and b will be $\frac{a + b}{2}$

For example,we are taking two numbers 5 and 7.Now ,the number midway between 5 and 7

$= \frac{5 + 7}{2} \\ = \frac{12}{2} \\ = 6$

Here two numbers are 12345 and 54321.So according to rule,the number midway between 12345 and 54321 is

$\frac{12345 + 54321}{2} \\ = \frac{66666}{2} \\ = 33333$

So, required number is 33333.

This is a problem of Algebra.

Some important Algebra formulas.

(a + b)² = a² + 2ab + b²

(a − b)² = a² − 2ab − b²

(a + b)³ = a³ + 3a²b + 3ab² + b³

(a - b)³ = a³ - 3a²b + 3ab² - b³

a³ + b³ = (a + b)³ − 3ab(a + b)

a³ - b³ = (a -b)³ + 3ab(a - b)

a² − b² = (a + b)(a − b)

a² + b² = (a + b)² − 2ab

a² + b² = (a − b)² + 2ab

a³ − b³ = (a − b)(a² + ab + b²)

a³ + b³ = (a + b)(a² − ab + b²)

Know more about Algebra,

1) https://brainly.in/question/13024124

2) https://brainly.in/question/1169549

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