해법
해법
솔루션 단계
Represent the numbers with :
A.T.Q.:
해결 :
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The 지름 of a circle is 20 m. Find its area in terms of pipi.Twice the sum of a number and four is twenty less than four times the number. Find the numberA boat traveled at a constant speed for 6 hours, covering a total 거리 of 408.3 kilometers. How fast was it going?number i^{66} as muchIn 25 years, Joseph's age will be eight times as old as he was 10 years ago. How old is he now?