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수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] 소금물, 속도에 맞먹는 시계 각도 문제
Dr.K
2021.04.25 07:45
조회 765
7시 40분에서 8시 사이에 시계의 분침과 시침이 이루는 각의 크기가 30º가 되었다고 한다.
다음 두 문제에 답을 하여라.
1. 7시 X분에 분침과 시침이 이루는 각의 크기가 30º라 할 때, X에 대한 방정식을 세워라.
(방정식이 두개 나올수 있음 주의!)
2. 1에서 나온 방정식을 이용하여 7시40분 이후에 분침과 시침이 이루는 각의 크기가 30º가 되는 시각을 구하여라.
(분수가 나오니까 주의!)
-
khr519
Lv.8
2021.04.25 16:11
비밀댓글
비밀 댓글이 등록 되었습니다.
-
피카파이
Lv.8
2021.04.26 21:39
사고력 학원에서 다들 배웁(는지 모르겟습)니다. 단순문제 삭제 부탁 드립(지 않습)니다.
-
김미래_기자
Lv.15
2021.04.30 01:37
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확인요청중
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