解答
解答
求解步骤
Represent the number with
A.T.Q.:
求解
流行的例子
angel is 2 years older than gavin. In 6 years, Gavin age will be twice Angel age now. How old are they 6 years from nowthe sum of a number x and 19.Huilan is 6 years older than Thomas. The sum of their ages is 106. What is Thomas's age?56.25% of what number is 168.75?B: Find the area of the triangle with 顶点 P(3,-3,0),Q(1,2,2) and R(1,-2,5)