{"id":"cb_practice_pdf:t5-math-m1-q9","source_id":"cb_practice_pdf","source_item_id":"t5-math-m1-q9","external_id":null,"ibn":null,"question_id":null,"program":"SAT","module":"math","domain_code":null,"domain":null,"skill_code":null,"skill":null,"difficulty":null,"score_band":null,"answer_type":"mcq","answer_source":"rationale","layout_warning":null,"form_id":"cb_practice_pdf:test-5","module_number":1,"position":9,"stem":"- - - - -_1,440 -_represents - -_the_number - ~ x+y = The equation of minutes of daylight (between sunrise and sunset), x, and the number of minutes of non-daylight, y, on a particular day in Oak Park, Illinois. If this day has 670 minutes of daylight, how many minutes of non-daylight does it have?","stimulus":"","stimulus_html":null,"stem_html":"<p>- - - - -_1,440 -_represents - -_the_number - ~ x+y = The equation of minutes of daylight (between sunrise and sunset), x, and the number of minutes of non-daylight, y, on a particular day in Oak Park, Illinois. If this day has 670 minutes of daylight, how many minutes of non-daylight does it have?</p>","rationale_html":"<p>+ =1,440 Choice B is correct. It’s given that the equation x y represents the number of minutes of daylight, x, and the number of minutes of non-daylight, y, on a particular day in Oak Park, Illinois. It’s also given that this day has 670 670 + 1= ,440 minutes of daylight. Substituting for x in the equation x y 670+ =1,440 670 yields y . Subtracting from both sides of this equation yields =770 770 y . Therefore, this day has minutes of non-daylight. Choice A is incorrect. This is the number of minutes of daylight, not non-daylight, on this day. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect. This is the total number of minutes of daylight and non-daylight.</p>","correct_answer":["B"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>670</p>","ord":0},{"label":"B","content_html":"<p>770</p>","ord":1},{"label":"C","content_html":"<p>1,373</p>","ord":2},{"label":"D","content_html":"<p>1,440</p>","ord":3}],"attribution":{"source_id":"cb_practice_pdf","source_name":"College Board full-length SAT practice tests (PDF)","rights_holder":"College Board","canonical_url":"https://satsuite.collegeboard.org/practice/practice-tests/paper","retrieved_from":"https://satsuite.collegeboard.org/practice/practice-tests/paper","attribution":"Full-length SAT practice tests 4–11 © College Board, published free at satsuite.collegeboard.org.","disclaimer":"Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.","license":"College Board copyright. Free to download; not licensed for redistribution.","redistributable":false,"item_count":905}}