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Find the numerical value if \( x=5 \) and \( y=8 \). \( 4(x+5 y) \)

Ask by Carrillo Mills. in the United States
Nov 12,2024

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The numerical value is 180.

Solución

Substitute \( x=5,y=8 \) into the expression \( 4(x+5y) \). Evaluate the expression by following steps: - step0: Evaluate: \(4\left(x+5y\right)\) - step1: Substitute: \(4\left(5+5\times 8\right)\) - step2: Multiply the numbers: \(4\left(5+40\right)\) - step3: Add the numbers: \(4\times 45\) - step4: Multiply the numbers: \(180\) When \( x=5 \) and \( y=8 \), the numerical value of \( 4(x+5y) \) is 180.

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Bonus Knowledge

To find the numerical value of \( 4(x + 5y) \) when \( x = 5 \) and \( y = 8 \), we first substitute the values of \( x \) and \( y \). 1. Calculate \( 5y \): \[ 5y = 5 \times 8 = 40 \] 2. Now substitute \( x \) and \( 5y \) into the expression: \[ x + 5y = 5 + 40 = 45 \] 3. Finally, multiply by 4: \[ 4(x + 5y) = 4 \times 45 = 180 \] So, the numerical value is \( 180 \).

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