From a sample of 50 incinerators in a major city. of the 50 samples, only 18 met an environmental standard for the concentration
1 answer:
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Answer:
Option D is the correct option.
Step-by-step explanation:
When there is a ( + ) in front of an expression in parentheses , there is no need to change the sign.
That means, the expression remains the same.
Just remove the unnecessary parentheses
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Collect like terms and simplify
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Hope I helped!
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Answer:
B
Step-by-step explanation:
+
> 1 ( multiply through by 3 to clear the fractions )
2 + x > 3 ( subtract 2 from both sides )
x > 1