a community service group organizes a car wash that raises $7c - 18$ dollars and a spaghetti dinner that raises $6s - 45$ dollars. which expression represents the total amount of money raised?

$13cs - 63$
$7c + 6s + 63$
$7c + 6s - 63$
$7c + 6s - 27$

Question

a community service group organizes a car wash that raises $7c - 18$ dollars and a spaghetti dinner that raises $6s - 45$ dollars. which expression represents the total amount of money raised?

$13cs - 63$
$7c + 6s + 63$
$7c + 6s - 63$
$7c + 6s - 27$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Algebraic Expressions", "Equivalent Expressions" ], "new_concepts": [], "current_concepts": [ "Algebraic Expressions", "Equivalent Expressions" ] } ## Set up the sum of the two expressions $$ (7c - 18) + (6s - 45) $$ ## Combine like terms $$ 7c + 6s + (-18 - 45) = 7c + 6s - 63 $$

(A) $13cs - 63$

(B) $7c + 6s + 63$

(C) $7c + 6s - 63$

(D) $7c + 6s - 27$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Algebraic Expressions" ] }

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Question

Explanation:

Set up the sum of the two expressions

Combine like terms

Answer:

Set up the sum of the two expressions

Combine like terms