4;6
4 pages every 6 minutes
4 * 3 = 12 pages
6 * 3 = 18 minutes
It would take him 18 minutes to read 12 pages
I hope this helps!:)
The justification used is multiplicative property of equality because both sides are multiplied by the same value
<h3>Solving linear equations</h3>
Given the expression below
-1/3(4x^2 - 3) - 3 = 5x^2 - 2
We are to determine the justification by Anne to get the step 2 as shown
(4x^2 - 3) - 3 = -3(5x^2 - 2)
Expand
(4x^2 - 3) - 3 = -15x^2 + 6
Hence the justification used is multiplicative property of equality because both sides are multiplied by the same value
Learn more on multiplicative property of equality here: brainly.com/question/1978763
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Investment = $12
For $15 profit, I have to earn, 12+15 = $27
Charge for 1 person(for paint faces) = 3
multiply by 9,
9 persons= $27
So, 9 person is the answer.
Whenever you're interested in computing the (absolute) difference between two values of a certain variable, you have to subtract the final value and the initial value. This is often written as delta:

So, in this case, the final temperature is -30°F. The initial temperature is 115°F. So, the variation is

A negative delta indicates that the value decreased, which is our case.