{"id":"cb_question_bank:39869964-a3c6-41ac-8822-edb03f4aa034","source_id":"cb_question_bank","source_item_id":"39869964-a3c6-41ac-8822-edb03f4aa034","external_id":"aaebe46b-7143-4bb9-ae10-3f9ce2a0fbcb","ibn":null,"question_id":"c6b151d4","program":"SAT","module":"math","domain_code":"H","domain":"Algebra","skill_code":"H.C.","skill":"Linear equations in two variables","difficulty":"E","score_band":2,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"A total of 364 paper straws of equal length were used to construct two types of polygons: triangles and rectangles. The triangles and rectangles were constructed so that no two polygons had a common side. The equation 3 x plus 4 y equals 364 represents this situation, where x is the number of triangles constructed and y is the number of rectangles constructed. What is the best interpretation of left parenthesis x comma y right parenthesis equals left parenthesis 24 comma 73 right parenthesis in this context?","stimulus":"","stimulus_html":null,"stem_html":"<p>A total of <math alttext=\"364\"><mn>364</mn>\n</math> paper straws of equal length were used to construct two types of polygons: triangles and rectangles. The triangles and rectangles were constructed so that no two polygons had a common side. The equation <math alttext=\"3 x plus 4 y equals 364\"><mrow>\n\t<mrow>\n\t\t<mrow>\n\t\t\t<mn>3</mn>\n\t\t\t<mi>x</mi>\n\t\t</mrow>\n\t\t<mo>+</mo>\n\t\t<mrow>\n\t\t\t<mn>4</mn>\n\t\t\t<mi>y</mi>\n\t\t</mrow>\n\t</mrow>\n\t<mo>=</mo>\n\t<mn>364</mn>\n</mrow>\n</math> represents this situation, where <math alttext=\"x\"><mi>x</mi>\n</math> is the number of triangles constructed and <math alttext=\"y\"><mi>y</mi>\n</math> is the number of rectangles constructed. What is the best interpretation of <math alttext=\"left parenthesis x comma y right parenthesis equals left parenthesis 24 comma 73 right parenthesis\"><mfenced><mrow><mi>x</mi><mo>,</mo><mi>y</mi></mrow></mfenced><mo>=</mo><mfenced><mrow><mn>24</mn><mo>,</mo><mn>73</mn></mrow></mfenced></math> in this context?</p>","rationale_html":"<p>Choice A is correct. It's given that <math alttext=\"364\"><mn>364</mn>\n</math> paper straws of equal length were used to construct triangles and rectangles, where no two polygons had a common side. It's also given that the equation <math alttext=\"3 x plus 4 y equals 364\"><mn>3</mn><mi>x</mi><mo>+</mo><mn>4</mn><mi>y</mi><mo>=</mo><mn>364</mn></math> represents this situation, where <math alttext=\"x\"><mi>x</mi>\n</math> is the number of triangles constructed and <math alttext=\"y\"><mi>y</mi>\n</math> is the number of rectangles constructed. The equation <math alttext=\"left parenthesis x comma y right parenthesis equals left parenthesis 24 comma 73 right parenthesis\"><mfenced><mrow><mi>x</mi><mo>,</mo><mi>y</mi></mrow></mfenced><mo>=</mo><mfenced><mrow><mn>24</mn><mo>,</mo><mn>73</mn></mrow></mfenced></math> means that if <math alttext=\"x equals 24\"><mi>x</mi><mo>=</mo><mn>24</mn></math>, then <math alttext=\"y equals 73\"><mi>y</mi><mo>=</mo><mn>73</mn></math>. Substituting <math alttext=\"24\"><mn>24</mn>\n</math> for <math alttext=\"x\"><mi>x</mi>\n</math> and <math alttext=\"73\"><mn>73</mn>\n</math> for <math alttext=\"y\"><mi>y</mi>\n</math> in <math alttext=\"3 x plus 4 y equals 364\"><mn>3</mn><mi>x</mi><mo>+</mo><mn>4</mn><mi>y</mi><mo>=</mo><mn>364</mn></math> yields&nbsp;<math alttext=\"3 left parenthesis 24 right parenthesis plus 4 left parenthesis 73 right parenthesis equals 364\"><mn>3</mn><mfenced><mn>24</mn></mfenced><mo>+</mo><mn>4</mn><mfenced><mn>73</mn></mfenced><mo>=</mo><mn>364</mn></math>, or&nbsp;<math alttext=\"364 equals 364\"><mn>364</mn><mo>=</mo><mn>364</mn></math>, which is true. Therefore, in this context, the equation <math alttext=\"left parenthesis x comma y right parenthesis equals left parenthesis 24 comma 73 right parenthesis\"><mfenced><mrow><mi>x</mi><mo>,</mo><mi>y</mi></mrow></mfenced><mo>=</mo><mfenced><mrow><mn>24</mn><mo>,</mo><mn>73</mn></mrow></mfenced></math> means that if <math alttext=\"24\"><mn>24</mn>\n</math> triangles were constructed, then <math alttext=\"73\"><mn>73</mn>\n</math> rectangles were constructed.&nbsp;</p>\n<p>Choice B is incorrect and may result from conceptual errors.</p>\n<p>Choice C is incorrect and may result from conceptual errors.</p>\n<p>Choice D is incorrect and may result from conceptual errors.</p>","correct_answer":["A"],"has_media":false,"has_mathml":true,"has_table":false,"source_created_at":"2023-08-02T20:25:59.814000+00:00","source_updated_at":"2023-08-02T20:25:59.814000+00:00","options":[{"label":"A","content_html":"<p>If <math alttext=\"24\"><mn>24</mn>\n</math> triangles were constructed, then <math alttext=\"73\"><mn>73</mn>\n</math> rectangles were constructed.</p>","ord":0},{"label":"B","content_html":"<p>If <math alttext=\"24\"><mn>24</mn>\n</math> triangles were constructed, then <math alttext=\"73\"><mn>73</mn>\n</math> paper straws were used.</p>","ord":1},{"label":"C","content_html":"<p>If <math alttext=\"73\"><mn>73</mn>\n</math> triangles were constructed, then <math alttext=\"24\"><mn>24</mn>\n</math> rectangles were constructed.</p>","ord":2},{"label":"D","content_html":"<p>If <math alttext=\"73\"><mn>73</mn>\n</math> triangles were constructed, then <math alttext=\"24\"><mn>24</mn>\n</math> paper straws were used.</p>","ord":3}],"attribution":{"source_id":"cb_question_bank","source_name":"College Board digital SAT question bank (community dump)","rights_holder":"College Board","canonical_url":"https://satsuitequestionbank.collegeboard.org/","retrieved_from":"https://raw.githubusercontent.com/mdn522/sat-question-bank/main/data/cb-digital-questions.json","attribution":"SAT practice questions © College Board, from the official SAT Suite Question Bank. Retrieved via the community dump at github.com/mdn522/sat-question-bank.","disclaimer":"SAT® and PSAT/NMSQT® are trademarks registered by the College Board, which is not affiliated with, does not sponsor, and does not endorse this project.","license":"College Board copyright; source repository carries no licence. Local use only.","redistributable":false,"item_count":2017}}