{"id":"cb_question_bank:674ff5f7-e74c-4280-a64a-8e87f8dd465c","source_id":"cb_question_bank","source_item_id":"674ff5f7-e74c-4280-a64a-8e87f8dd465c","external_id":"4c2cb31a-9ec5-40cc-863d-4baac298c63b","ibn":null,"question_id":"70d9516e","program":"SAT","module":"math","domain_code":"H","domain":"Algebra","skill_code":"H.B.","skill":"Linear functions","difficulty":"E","score_band":1,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"A bus is traveling at a constant speed along a straight portion of road. The equation d equals 30 t gives the distance d , in feet from a road marker, that the bus will be t seconds after passing the marker. How many feet from the marker will the bus be 2 seconds after passing the marker?","stimulus":"","stimulus_html":null,"stem_html":"<p style=\"text-align: left;\">A bus is traveling at a constant speed along a straight portion of road. The equation <math alttext=\"d equals 30 t\"><mrow>\n\t<mi>d</mi>\n\t<mo>=</mo>\n\t<mrow>\n\t\t<mn>30</mn>\n\t\t<mi>t</mi>\n\t</mrow>\n</mrow>\n</math> gives the distance <math alttext=\"d\"><mi>d</mi>\n</math>, in feet from a road marker, that the bus will be <math alttext=\"t\"><mi>t</mi>\n</math> seconds after passing the marker. How many feet from the marker will the bus be <math alttext=\"2\"><mn>2</mn>\n</math> seconds after passing the marker?</p>","rationale_html":"<p style=\"text-align: left;\">Choice C is correct. It’s given that <math alttext=\"t\"><mi>t</mi>\n</math> represents the number of seconds after the bus passes the marker. Substituting <math alttext=\"2\"><mn>2</mn>\n</math> for <math alttext=\"t\"><mi>t</mi>\n</math> in the given equation <math alttext=\"d equals 30 t\"><mrow>\n\t<mi>d</mi>\n\t<mo>=</mo>\n\t<mrow>\n\t\t<mn>30</mn>\n\t\t<mi>t</mi>\n\t</mrow>\n</mrow>\n</math> yields <math alttext=\"d equals 30 left parenthesis 2 right parenthesis\"><mi>d</mi><mo>=</mo><mn>30</mn><mfenced><mn>2</mn></mfenced></math>, or <math alttext=\"d equals 60\"><mrow>\n\t<mi>d</mi>\n\t<mo>=</mo>\n\t<mn>60</mn>\n</mrow>\n</math>. Therefore, the bus will be <math alttext=\"60\"><mn>60</mn>\n</math> feet from the marker <math alttext=\"2\"><mn>2</mn>\n</math> seconds after passing it.</p>\n<p>Choice A is incorrect. This is the distance, in feet, the bus will be from the marker <math alttext=\"1\"><mn>1</mn>\n</math> second, not <math alttext=\"2\"><mn>2</mn>\n</math> seconds, after passing it.</p>\n<p>Choice B is incorrect and may result from conceptual or calculation errors.</p>\n<p>Choice D is incorrect. This is the distance, in feet, the bus will be from the marker <math alttext=\"3\"><mn>3</mn>\n</math> seconds, not <math alttext=\"2\"><mn>2</mn>\n</math> seconds, after passing it.</p>","correct_answer":["C"],"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=\"30\"><mn>30</mn>\n</math></p>","ord":0},{"label":"B","content_html":"<p><math alttext=\"32\"><mn>32</mn>\n</math></p>","ord":1},{"label":"C","content_html":"<p><math alttext=\"60\"><mn>60</mn>\n</math></p>","ord":2},{"label":"D","content_html":"<p><math alttext=\"90\"><mn>90</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}}