A counterexample for the statement 'All square roots are irrational numbers.' is the square root of 9. This is because when simplified, the answer is 3.
For a number to be irrational, it can't be expressed in fractional form. However, 3 can be expressed in fractional form as 3/1.
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Answer:
"There are 30 chairs in 5 rows. How many chairs are in each row?" Would be the correct story problem.
The answer to this question is y = 13
7y - 3x = -5
-3x = -7y - 5
x = 7/3y + 5/3
