John earns thrice as much as his wife Joan. Write down an expression for the difference between their earnings.

      

John earns thrice as much as his wife Joan. Write down an expression for the difference between their earnings.

  

Answers


joseph
Let the earnings of Joan be represented by x
John’s earning will be 3xs
Their difference is 3x-x = 2x

joseph rimiru answered the question on October 21, 2017 at 20:22


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