解答
解答
+1
十进制
求解步骤
Given:
给定 的圆面积:
流行的例子
Alvin's age is two times Elga's age. The sum of their ages is 24. What is Elga's age?six less than two thirds of a number is negative ten.A principal 20300, is invested at 12% interest for 5 years. Determine the future value if the interest is compounded quarterly. resent value of the project.six more than the product of a number and 3 is equal to 4In 4 years’ time, a mother will be three times as old as her son. Four years ago she was five times as old as her son. Find their present ages.