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algol13
3 years ago
9

Font

Mathematics
1 answer:
balu736 [363]3 years ago
7 0

Answer:

A. 4.2 times

Step-by-step explanation:

Chlorine level of the pool as adjusted by Paula = 6.3 parts per million

Ideal Chlorine level as suggested by the magazine = 1.5 parts per million.

Thus, the number of times the ideal level of Chlorine that the current level is = current level ÷ ideal level

= \frac{6.3}{1.5} = 4.2

The current Chlorine level is 4.2 times the ideal Chlorine level.

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anastassius [24]

Answer:

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Step-by-step explanation:

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x_{1}=\sqrt{5}\:x_{2}=2

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Answer:

Step-by-step explanation:

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5x + y = 42 <====

8 0
3 years ago
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