{"id":"cb_question_bank:371341f1-77aa-4849-b7c0-9dee64773d71","source_id":"cb_question_bank","source_item_id":"371341f1-77aa-4849-b7c0-9dee64773d71","external_id":"afbd028c-6ff7-478a-83f7-9d7942bf56c6","ibn":null,"question_id":"ebf8d2b7","program":"SAT","module":"math","domain_code":"H","domain":"Algebra","skill_code":"H.C.","skill":"Linear equations in two variables","difficulty":"E","score_band":3,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"A machine makes large boxes or small boxes, one at a time, for a total of 700 minutes each day. It takes the machine 10 minutes to make a large box or 5 minutes to make a small box. Which equation represents the possible number of large boxes, x , and small boxes, y , the machine can make each day?","stimulus":"","stimulus_html":null,"stem_html":"<p style=\"text-align: left;\">A machine makes large boxes or small boxes, one at a time, for a total of <math alttext=\"700\"><mn>700</mn>\n</math> minutes each day. It takes the machine <math alttext=\"10\"><mn>10</mn>\n</math> minutes to make a large box or <math alttext=\"5\"><mn>5</mn>\n</math> minutes to make a small box. Which equation represents the possible number of large boxes, <math alttext=\"x\"><mi>x</mi>\n</math>, and small boxes, <math alttext=\"y\"><mi>y</mi>\n</math>, the machine can make each day?</p>","rationale_html":"<p style=\"text-align: left;\">Choice B is correct. It’s given that it takes the machine <math alttext=\"10\"><mn>10</mn>\n</math> minutes to make a large box. It's also given that <math alttext=\"x\"><mi>x</mi>\n</math> represents the possible number of large boxes the machine can make each day. Multiplying <math alttext=\"10\"><mn>10</mn>\n</math> by <math alttext=\"x\"><mi>x</mi>\n</math> gives <math alttext=\"10 x\"><mrow>\n\t<mn>10</mn>\n\t<mi>x</mi>\n</mrow>\n</math>, which represents the amount of time spent making large boxes. It’s given that it takes the machine <math alttext=\"5\"><mn>5</mn>\n</math> minutes to make a small box. It's also given that <math alttext=\"y\"><mi>y</mi>\n</math> represents the possible number of small boxes the machine can make each day. Multiplying <math alttext=\"5\"><mn>5</mn>\n</math> by <math alttext=\"y\"><mi>y</mi>\n</math> gives <math alttext=\"5 y\"><mrow>\n\t<mn>5</mn>\n\t<mi>y</mi>\n</mrow>\n</math>, which represents the amount of time spent making small boxes. Combining the amount of time spent making <math alttext=\"x\"><mi>x</mi>\n</math> large boxes and <math alttext=\"y\"><mi>y</mi>\n</math> small boxes yields <math alttext=\"10 x plus 5 y\"><mrow>\n\t<mrow>\n\t\t<mn>10</mn>\n\t\t<mi>x</mi>\n\t</mrow>\n\t<mo>+</mo>\n\t<mrow>\n\t\t<mn>5</mn>\n\t\t<mi>y</mi>\n\t</mrow>\n</mrow>\n</math>. It’s given that the machine makes boxes for a total of <math alttext=\"700\"><mn>700</mn>\n</math> minutes each day. Therefore <math alttext=\"10 x plus 5 y equals 700\"><mrow>\n\t<mrow>\n\t\t<mrow>\n\t\t\t<mn>10</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>5</mn>\n\t\t\t<mi>y</mi>\n\t\t</mrow>\n\t</mrow>\n\t<mo>=</mo>\n\t<mn>700</mn>\n</mrow>\n</math> represents the possible number of large boxes, <math alttext=\"x\"><mi>x</mi>\n</math>, and small boxes, <math alttext=\"y\"><mi>y</mi>\n</math>, the machine can make each day.</p>\n<p style=\"text-align: left;\">Choice A is incorrect and may result from associating the time of <math alttext=\"10\"><mn>10</mn>\n</math> minutes with small, rather than large, boxes and the time of <math alttext=\"5\"><mn>5</mn>\n</math> minutes with large, rather than small, boxes.</p>\n<p style=\"text-align: left;\">Choice C is incorrect and may result from conceptual errors.</p>\n<p style=\"text-align: left;\">Choice D is incorrect and may result from conceptual errors.</p>","correct_answer":["B"],"has_media":false,"has_mathml":true,"has_table":false,"source_created_at":"2023-08-02T20:25:59.813000+00:00","source_updated_at":"2023-08-02T20:25:59.813000+00:00","options":[{"label":"A","content_html":"<p><math alttext=\"5 x plus 10 y equals 700\"><mn>5</mn><mi>x</mi><mo>+</mo><mn>10</mn><mi>y</mi><mo>=</mo><mn>700</mn></math></p>","ord":0},{"label":"B","content_html":"<p><math alttext=\"10 x plus 5 y equals 700\"><mn>10</mn><mi>x</mi><mo>+</mo><mn>5</mn><mi>y</mi><mo>=</mo><mn>700</mn></math></p>","ord":1},{"label":"C","content_html":"<p><math alttext=\"left parenthesis x plus y right parenthesis left parenthesis 10 plus 5 right parenthesis equals 700\"><mfenced><mrow><mi>x</mi><mo>+</mo><mi>y</mi></mrow></mfenced><mfenced><mrow><mn>10</mn><mo>+</mo><mn>5</mn></mrow></mfenced><mo>=</mo><mn>700</mn></math></p>","ord":2},{"label":"D","content_html":"<p><math alttext=\"left parenthesis 10 plus x right parenthesis left parenthesis 5 plus y right parenthesis equals 700\"><mfenced><mrow><mn>10</mn><mo>+</mo><mi>x</mi></mrow></mfenced><mfenced><mrow><mn>5</mn><mo>+</mo><mi>y</mi></mrow></mfenced><mo>=</mo><mn>700</mn></math></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}}