Question

\( \frac{3}{10}-\frac{24}{25}.(\frac{5}{12}-\frac{5}{8}x)\frac{2}{6}x-1 \)

Ask by Christensen Lyons. in Argentina
Nov 24,2024

Real Tutor Solution

Tutor-Verified Answer

Answer

La expresión simplificada es \( \frac{1}{5}x - \frac{5}{6} \).

Solution

Para simplificar la expresión \( \frac{3}{10}-\frac{24}{25}\left(\frac{5}{12}-\frac{5}{8}x\right)\frac{2}{6}x-1 \), sigamos los pasos: 1. Primero, simplificamos \( \frac{2}{6} \) a \( \frac{1}{3} \): \[ \frac{3}{10} - \frac{24}{25}\left(\frac{5}{12} - \frac{5}{8}x\right)\frac{1}{3} - 1 \] 2. Ahora, multiplicamos \( \frac{24}{25} \) por \( \frac{1}{3} \): \[ \frac{24}{25} \cdot \frac{1}{3} = \frac{24}{75} = \frac{8}{25} \] Entonces, la expresión se convierte en: \[ \frac{3}{10} - \frac{8}{25}\left(\frac{5}{12} - \frac{5}{8}x\right) - 1 \] 3. Ahora, distribuimos \( \frac{8}{25} \): \[ \frac{3}{10} - \left(\frac{8}{25} \cdot \frac{5}{12} - \frac{8}{25} \cdot \frac{5}{8}x\right) - 1 \] Calculamos \( \frac{8}{25} \cdot \frac{5}{12} \): \[ \frac{8 \cdot 5}{25 \cdot 12} = \frac{40}{300} = \frac{2}{15} \] Y \( \frac{8}{25} \cdot \frac{5}{8}x \) se simplifica a: \[ \frac{5}{25}x = \frac{1}{5}x \] 4. Sustituyendo estos resultados en la expresión: \[ \frac{3}{10} - \left(\frac{2}{15} - \frac{1}{5}x\right) - 1 \] 5. Ahora, simplificamos: \[ \frac{3}{10} - \frac{2}{15} + \frac{1}{5}x - 1 \] 6. Para combinar \( \frac{3}{10} \) y \( -\frac{2}{15} \), encontramos un común denominador, que es 30: \[ \frac{3}{10} = \frac{9}{30}, \quad -\frac{2}{15} = -\frac{4}{30} \] Entonces: \[ \frac{9}{30} - \frac{4}{30} = \frac{5}{30} = \frac{1}{6} \] 7. Finalmente, la expresión se convierte en: \[ \frac{1}{6} + \frac{1}{5}x - 1 \] 8. Para simplificar \( -1 \) a un denominador común de 6: \[ -1 = -\frac{6}{6} \] 9. Así que la expresión final es: \[ \frac{1}{6} + \frac{1}{5}x - \frac{6}{6} = \frac{1}{5}x - \frac{5}{6} \] Por lo tanto, la expresión simplificada es: \[ \frac{1}{5}x - \frac{5}{6} \]

Reviewed and approved by the UpStudy tutoring team

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Simplify this solution

Mind Expander

Let's simplify this expression step by step while keeping things clear and engaging! First, we need to deal with the fractions and the operations. Notice that the term \( \frac{2}{6} \) can be simplified to \( \frac{1}{3} \). Hence, we can rewrite the expression as: \[ \frac{3}{10} - \frac{24}{25} \left( \frac{5}{12} - \frac{5}{8}x \right) \cdot \frac{1}{3} x - 1 \] Now let's focus on the part inside the parentheses: \( \frac{5}{12} - \frac{5}{8}x \). We can find a common denominator here. The least common multiple of 12 and 8 is 24, allowing us to rewrite this as: \[ \frac{5}{12} = \frac{10}{24} \quad \text{and} \quad \frac{5}{8}x = \frac{15}{24}x \] So, we have: \[ \frac{10}{24} - \frac{15}{24}x = \frac{10 - 15x}{24} \] Next, substitute this back into our expression: \[ \frac{3}{10} - \frac{24}{25} \cdot \frac{10 - 15x}{24} \cdot \frac{1}{3} x - 1 \] The \( \frac{24}{24} \) cancels out, and we get: \[ \frac{3}{10} - \frac{24}{25} \cdot \frac{10 - 15x}{3} x - 1 \] Now let’s manage \( \frac{24}{25} \cdot \frac{1}{3} = \frac{8}{25} \): \[ \frac{3}{10} - \frac{8}{25} (10 - 15x)x - 1 \] Distributing \( -\frac{8}{25} \) yields: \[ \frac{3}{10} - \left( \frac{80}{25} x - \frac{120}{25}x^2 \right) - 1 \] This simplifies to: \[ \frac{3}{10} - 3.2x + 4.8x^2 - 1 \] Next, combine \( \frac{3}{10} \) and \( -1 \), remembering that \( -1 = -\frac{10}{10} \): \[ -\frac{10}{10} + \frac{3}{10} = -\frac{7}{10} \] Finally, our full simplified expression is: \[ 4.8x^2 - 3.2x - \frac{7}{10} \] And there you have it! The expression simplified like a pro.

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