add. write your answer in simplified form.

2 ft 9 in. + 2 ft 11 in.

5 ft 10 in.
4 ft 20 in.
5 ft 8 in.
11 ft 13 in.

Question

add. write your answer in simplified form.

2 ft 9 in. + 2 ft 11 in.

5 ft 10 in.
4 ft 20 in.
5 ft 8 in.
11 ft 13 in.

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Unit Conversion" ], "new_concepts": [ "Adding Mixed Units" ], "current_concepts": [ "Unit Conversion", "Adding Mixed Units" ] } ## Sum the feet and inches separately $$ \begin{aligned} \text{Feet: } & 2\text{ ft} + 2\text{ ft} = 4\text{ ft} \ \text{Inches: } & 9\text{ in.} + 11\text{ in.} = 20\text{ in.} \end{aligned} $$ ## Convert excess inches to feet $$ \begin{aligned} 20\text{ in.} & = 12\text{ in.} + 8\text{ in.} \ & = 1\text{ ft } 8\text{ in.} \end{aligned} $$ ## Combine the total feet and inches $$ \begin{aligned} \text{Total: } & 4\text{ ft} + 1\text{ ft } 8\text{ in.} = 5\text{ ft } 8\text{ in.} \end{aligned} $$

(A) 5 ft 10 in.

(B) 4 ft 20 in.

(C) 5 ft 8 in.

(D) 11 ft 13 in.

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Geometry", "Unit Conversion" ] }

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Sum the feet and inches separately

Convert excess inches to feet

Combine the total feet and inches

Answer: