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受欢迎的 Word Problems >

Question One number is eight less than three times another number. If the sum of the numbers is 20 , find the numbers.

解答

Q u es t i o n O n e n u mb er i s e i g h t l ess t han t h ree t im es an o t h er n u mb er . I f t h e s u m o f t h e n u mb ers i s 20, f in d t h e n u mb ers .

解答

The numbers : 13, 7

求解步骤

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = 3 y - 8

x + y = 20

x = 3 y - 8, x + y = 20 : x = 13, y = 7

The numbers : 13, 7

流行的例子

2times the sum of 1 and some number is 0 The sum of the ages of John and Mary is 32. Four years ago, John was twice as old as Mary. Find the present age of each.eight less than the product of 5 and a number is 6.nine more than the product of a number and 8 equals 5 The 差集 of three times a number and 4 is-19