Answer:
Let y represents the maximum variation in the level of chlorine,
Given,
Level of chlorine in a hot tub is within 1.75 ppm of 3.25 ppm.
So, the standard level of chlorine = 1.75 + y or 3.25 - y
⇒ 1.75 + y = 3.25 - y
⇒ 2y = 5
⇒ y = 2.5
Thus, the standard level would be 2.5 ppm,
If x represents the present level of chlorine,
Then it would be lie within 1.75 ppm of 3.25 ppm.
If the difference between x and standard level ≤ Maximum variation
⇒ |x-2.5| ≤ 0.75
Which is the required absolute value inequality to represent this situation.
b. If x = 1.0 ppm,
Since |1.0-2.5|=1.5 which is not less than equal to 0.75,
Hence, he should add more chlorine.
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
Since you can use the Pythagorean theorem to calculate the length of the hypotenuse, each side can be found to be 5. There are four equal sides, so it is 20.
Answer:
this is very simple
its 2342423424324343
Step-by-step explanation:
Answer:
12 ounces
Step-by-step explanation:
Answer above.