the cost to rent skis at a local sporting goods store is \$15 plus \$20 per day. which equation models the relationship between the total cost to rent, $c$, and the length of the rental in days, $d$?

$c = (15 + 20)d$
$c = 15d + 20$
$c = 20d + 15$
$c = (15 + d)20$

Question

the cost to rent skis at a local sporting goods store is \$15 plus \$20 per day. which equation models the relationship between the total cost to rent, $c$, and the length of the rental in days, $d$?

$c = (15 + 20)d$
$c = 15d + 20$
$c = 20d + 15$
$c = (15 + d)20$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Linear Modeling" ], "new_concepts": [], "current_concepts": [ "Linear Modeling", "Linear Functions" ] } ## Identify the constant and variable rates $$ \begin{aligned} &\text{Fixed cost (y-intercept)} = 15\ &\text{Daily rate (slope)} = 20 \end{aligned} $$ ## Formulate the linear equation $$ c = 20d + 15 $$

$c = (15 + 20)d$

$c = 15d + 20$

$c = 20d + 15$

$c = (15 + d)20$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Linear Modeling" ] }

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Question

Explanation:

Identify the constant and variable rates

Formulate the linear equation

Answer: