{"id":"cb_practice_pdf:t5-math-m1-q4","source_id":"cb_practice_pdf","source_item_id":"t5-math-m1-q4","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":4,"stem":"- - - - - -_27 - - - - s+7r = r = 3 What is the solution (r,s) to the given system of equations?","stimulus":"","stimulus_html":null,"stem_html":"<p>- - - - - -_27 - - - - s+7r = r = 3 What is the solution (r,s) to the given system of equations?</p>","rationale_html":"<p>= Choice B is correct. The second equation in the given system is r 3. +73 =27 Substituting 3 for r in the first equation in the given system yields s ^ h , +21=27 21 = or s . Subtracting from both sides of this equation yields s 6. 3,6 Therefore, the solution ^r,sh to the given system of equations is ^ h. Choice A is incorrect. This is the solution ^s,rh, not ^r,sh, to the given system of equations. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.</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>6,3</p>","ord":0},{"label":"B","content_html":"<p>3,6</p>","ord":1},{"label":"C","content_html":"<p>3,27 27,3</p>","ord":2},{"label":"D","content_html":"","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}}