거리속력시간#부등식#SAT#미국수능수학 썸네일형 리스트형 [SAT수학문제]부등식 만들기 오늘은 아주 간단한 부등식 완성 문제 하나만 풀어볼까요? To get to work, Mary must travel 8 miles by bus and 16 miles by train everyday. The bus travels at an average speed of x miles per hour and the train travels at an average speed of y miles per hour. If Mary's daily commute never takes more than 1 hour, which of the following inequalities represents the possible average speeds of the bus and train during the commut.. 더보기 이전 1 다음
