{"id":"cb_question_bank:977e4212-2867-4a44-8597-0a615e5984da","source_id":"cb_question_bank","source_item_id":"977e4212-2867-4a44-8597-0a615e5984da","external_id":"ddfbf736-4c36-47b1-8e69-a9b951ed1842","ibn":null,"question_id":"c4d49134","program":"SAT","module":"math","domain_code":"H","domain":"Algebra","skill_code":"H.B.","skill":"Linear functions","difficulty":"E","score_band":2,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"s equals 40 plus 3 t The equation gives the speed s , in miles per hour, of a certain car t seconds after it began to accelerate. What is the speed, in miles per hour, of the car 5 seconds after it began to accelerate?","stimulus":"","stimulus_html":null,"stem_html":"<p style=\"text-align: center;\"><math alttext=\"s equals 40 plus 3 t\"><mi>s</mi><mo>=</mo><mrow><mn>40</mn></mrow><mo>+</mo><mrow><mn>3</mn></mrow><mi>t</mi></math></p>\n<p style=\"text-align: left;\">The equation gives the speed <math alttext=\"s\"><mi>s</mi>\n</math>, in miles per hour, of a certain car <math alttext=\"t\"><mi>t</mi>\n</math> seconds after it began to accelerate. What is the speed, in miles per hour, of the car <math alttext=\"5\"><mn>5</mn>\n</math> seconds after it began to accelerate?</p>","rationale_html":"<p>Choice D is correct. In the given equation, <math alttext=\"s\"><mi>s</mi>\n</math> is the speed, in miles per hour, of a certain car <math alttext=\"t\"><mi>t</mi>\n</math> seconds after it began to accelerate. Therefore, the speed of the car, in miles per hour, <math alttext=\"5\"><mn>5</mn>\n</math> seconds after it began to accelerate can be found by substituting <math alttext=\"5\"><mn>5</mn>\n</math> for <math alttext=\"t\"><mi>t</mi>\n</math> in the given equation, which yields&nbsp;<math alttext=\"s equals 40 plus 3 left parenthesis 5 right parenthesis\"><mi>s</mi><mo>=</mo><mn>40</mn><mo>+</mo><mn>3</mn><mfenced><mn>5</mn></mfenced></math>, or <math alttext=\"s equals 55\"><mi>s</mi><mo>=</mo><mn>55</mn></math>. Thus, the speed of the car <math alttext=\"5\"><mn>5</mn>\n</math> seconds after it began to accelerate is <math alttext=\"55\"><mn>55</mn>\n</math> miles per hour.</p>\n<p>Choice A is incorrect and may result from conceptual or calculation errors.</p>\n<p>Choice B is incorrect and may result from conceptual or calculation errors.</p>\n<p>Choice C is incorrect and may result from conceptual or calculation errors.</p>","correct_answer":["D"],"has_media":false,"has_mathml":true,"has_table":false,"source_created_at":"2023-08-02T20:25:59.812000+00:00","source_updated_at":"2023-08-02T20:25:59.812000+00:00","options":[{"label":"A","content_html":"<p><math alttext=\"40\"><mn>40</mn>\n</math></p>","ord":0},{"label":"B","content_html":"<p><math alttext=\"43\"><mn>43</mn>\n</math></p>","ord":1},{"label":"C","content_html":"<p><math alttext=\"45\"><mn>45</mn>\n</math></p>","ord":2},{"label":"D","content_html":"<p><math alttext=\"55\"><mn>55</mn>\n</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}}