Question

what would be the expression?
31×9.87/0.509​

Answer 1

Answer:

$31 \times 9.87 \div 0.509 = 601.1198428290766$

Step-by-step explanation:

I think might be helpful for you.

Answer 2

Answer:

The expression would be 601.12.

Step-by-step explanation:

Given,31×9.87/0.509

We want to find value of this.

This is a problem of Algebra.

Now,31×9.87/0.509

$= 31 \times \frac{9.87}{0.509} \\ = 31 \times \frac{987 \times 1000}{509 \times 100} \\ = 31 \times \frac{987 \times 10}{509} \\ = 31 \times \frac{9870}{509} \\= 601.119843 \\=601.12$

So, required value of the expression is 601.12

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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