Answer:
y = -4x + 3
Step-by-step explanation:
y - y₁ = m(x - x₁)
⇒ y - (-1) = -4(x - 1)
⇒ y + 1 = -4x + 4
⇒ y = -4x + 3
Lets get started :)
2 + 2 + x - 7 = 21
11 + x = 21
We have to subtract 11 on both sides to isolate x
11 ( - 11 ) + x = 21 ( - 11 )
11 and 11 cancels out
x = 10
<h3>The amount of Chlorine (A) to add to a basin is 112590000000</h3>
<em><u>Solution:</u></em>
Given that,
<em><u>A wastewater treatment operator uses the formula:</u></em>
Where,
A = amount of chlorine to add to basin
The flow through the basin is Fand the concentration of Chlorine to water is C
From given,
F = 1800
C = 7, 500, 000
To find: A
Thus amount of Chlorine (A) to add to a basin is 112590000000
Y = 7.25x
Where x = hours.
You can get this by dividing the amount by the amount of hours in each pair.