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the perimeter of a rectangle is given by $p = 2l + 2w$. if a rectangle …

Question

the perimeter of a rectangle is given by $p = 2l + 2w$. if a rectangle has a perimeter of 26 inches and a length of 7 inches, what is its width? inches

Explanation:

Step1: Sustituir valores en la fórmula

Dado que $P = 26$ e $L=7$, sustituimos en $P = 2L + 2W$. Tenemos $26=2\times7 + 2W$.

Step2: Simplificar el lado derecho

Calculamos $2\times7 = 14$, entonces la ecuación es $26 = 14+2W$.

Step3: Despejar la variable $W$

Restamos 14 de ambos lados: $26 - 14=14 + 2W-14$. Esto da $12 = 2W$.

Step4: Obtener el valor de $W$

Dividimos ambos lados por 2: $\frac{12}{2}=\frac{2W}{2}$. Entonces $W = 6$.

Answer:

6