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likoan [24]
3 years ago
13

How do you evaluate the following equation by distributing the negative sign?

Mathematics
1 answer:
mash [69]3 years ago
6 0
6 - (3 + 15 * 5) ...do what is in the parenthesis first
6 - (3 + 75) =
6 - 78 =
-72
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5x4 - 7x3 + x + 2 <br> terms
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It is already the farthest that can be

Step-by-step explanation:

5x4 - 7x3 + x + 2

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The problem is how many people must attend the third show so that the average attendance for three shows is 3000? And the other
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An average is just the total attendance numbers / the number of performances.

Let's let the number of people in the third show be equal to x so we can write this as a formula, it's easier to read. x is just "some number we don't know"

The average is

Average=Total attendance/3
So
3000=(2580+2920+x)/3

So let's multiply by that 3 on both sides, make x easier to find

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So

2580+2920+x=3000*3
2580+2920+x=9000
 

Then we subtract those other attendances to get x on its own.

x=9000-2580-2920
x=3500





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