Question

4. 14 балла| Асем задумала число. Это задуманное число она разделила на (-0.9), затем от полученного частного вычла 14,1 и в результате получила число -5.1. Какое число задумала Асем? помогите пожалуйста срочно ​

Answer 1

Ответ:

x — задуманное число

$x \div ( - 0.9) - 14.1 = - 5.1 \\ \\ x \div ( - \frac{9}{10} ) - \frac{141}{10} = - \frac{51}{10} \\ \\ x \div ( - \frac{9}{10} ) = - \frac{51}{10} + \frac{141}{10} \\ \\ x \div ( - \frac{9}{10} ) = \frac{90}{10} \\ \\ x = 9 \times ( - \frac{9}{10} ) \\ \\ x = - \frac{81}{10} \\ \\ x = - 8.1$

Она задумала число -8,1

Answer 2

To find the number that Assem had in mind, we can follow the given steps:

1. Assem divided the number she had in mind by -0.9. 2. She then subtracted 14.1 from the quotient. 3. The result of this calculation was -5.1.

Let's denote the number Assem had in mind as "x". We can write the equation based on the given information:

(x / -0.9) - 14.1 = -5.1

To find the value of x, we can solve this equation:

(x / -0.9) = -5.1 + 14.1 (x / -0.9) = 9

To isolate x, we can multiply both sides of the equation by -0.9:

x = 9 * -0.9 x = -8.1

Therefore, the number that Assem had in mind is -8.1.

Please let me know if you need any further assistance!