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Question
- a company charges a flat fee of $20 plus $0.75 per mile for a ride service. if d represents the distance traveled in miles, which ea. $c = 0.75d + 20$b. $c = 0.75d - 20$c. $c = 0.75 + 20d$d. $c = 20d + 0.75$
Step1: Analizar el costo fijo y variable
El costo fijo es $20 (se cobra siempre). El costo variable es $0.75 por milla, así que para \( d \) millas, el costo variable es \( 0.75d \).
Step2: Formular la ecuación del costo total
El costo total \( C \) es la suma del costo fijo y el costo variable. Entonces, \( C = 0.75d + 20 \).
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a. \( C = 0.75d + 20 \)