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標題:

數學問題 快 20點

發問:

1.If a and b are positive number, and a=3b,by what percentage is a greater than b? 2.If x and y are positive numbers,and x=0.56y,by what percentage is x less than y? 要步驟同答案 要英文 多謝曬

最佳解答:

Answers and steps as follow: Qn 1. a = 3b = 300% b = ( 1 + 200% )b Hence, 'a' is 200% greater than "b" ============================ Qn 2. x = 0.56y = ( 1 - 0.44 )y = ( 1 - 44% )y Hence, "x" is 44% less than "y" ======================== Hope I have helped you.

其他解答:6CC7293C79127CE5