peters heart beats 70 times per minute and pumps 0.05 l of blood with each beat.

how much blood does peters heart pump per minute?

3.5 l
7.5 l
21 l
35 l

Question

peters heart beats 70 times per minute and pumps 0.05 l of blood with each beat.

how much blood does peters heart pump per minute?

3.5 l
7.5 l
21 l
35 l

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Rate and Unit Conversion", "Proportional Reasoning" ], "new_concepts": [], "current_concepts": [ "Rate and Unit Conversion", "Proportional Reasoning", "Multiplication and Addition Word Problems" ] } ## Identify given values and target $$ \begin{aligned} &\text{Heart rate} = 70\text{ beats/min} \ &\text{Volume per beat} = 0.05\text{ L/beat} \ &\text{Target} = \text{Volume pumped per minute} \end{aligned} $$ ## Calculate total volume pumped per minute $$ \begin{aligned} \text{Volume per minute} &= 70\text{ beats/min} \times 0.05\text{ L/beat} \ &= 3.5\text{ L/min} \end{aligned} $$

(A) 3.5 L

(B) 7.5 L

(C) 21 L

(D) 35 L

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Rate and Unit Conversion" ] }

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Question

Explanation:

Identify given values and target

Calculate total volume pumped per minute

Answer: