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  • 14-12-2018
  • Mathematics
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are theese rational

11/12 times 9/22

x + (-2x)



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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 14-12-2018

Answer:

11/12 times 9/22  - rational

x + (-2x)  unknown

Step-by-step explanation:

11/12 is a rational number  (the ratio of integers)

9/22 is a rational number (the ratio of integers)

11/12 * 9/22 is a rational number

The product of 2 rational numbers is rational

x+-2x = x  but we do not know if x is rational or irrational , so we cannot say if it is rational or not.   If x is rational, the sum is rational.  If r is irrational, the sum is irrational.

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