해법
해법
솔루션 단계
Translate the problem into an equation:
가장 가까운 hundredth 으로 반올림:
인기 있는 예
Six years ago, Sally was 12 years younger than thrice her sister's age. How old is Sally if she is twice as old as her sister now?Find three consecutive odd integers whose sum is −249Bill is four times as old as Lily. Two years from now, Bill will be nine times as old as Lily was two years ago. Find their present ages.The radius of a circle is 19 in. Find its 원둘레 in terms of pipi.The radius of a 원형 is 5 ft. Find its area in terms of pipi.