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Annette [7]
2 years ago
11

Of the 125 people in the community choir, 22 of them actually come from other communities. What fraction of the choir comes from

other communities
Mathematics
1 answer:
algol132 years ago
8 0
First you have to find out how many make a certain percent so..125/100=1.25 meaning that 1 person repsresent's 1.25%
   
 
 
So 22*1.25= 27.5% meaning 27.5% came from other comunities!


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2 years ago
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I need help seeing what I did wrong
Makovka662 [10]

Answer:  The two roots are x = 3/2 and x = -2

=========================================================

Explanation:

You have the right idea so far. But the two numbers should be 3 and -4 since

  • 3*(-4) = -12
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The -1 being the coefficient of the x term.

This means you need to change the -3x and 4x to 3x and -4x respectively. The other inner boxes are correct.

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Refer to the diagram below to see one way to fill out the box method, and that helps determine the factorization.

If we place a 2x to the left of -2x^2, then we need an -x up top because 2x*(-x) = -2x^2

Then based on that outer 2x, we need a -2 up top over the -4x. That way we get 2x*(-2) = -4x

So we have the factor -x-2 along the top

The last thing missing is the -3 to the left of 3x. Note how -3*(-x) = 3x in the left corner and -3*(-2) = 6 in the lower right corner.

We have the factor 2x-3 along the left side.

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The two factors are (2x-3) and (-x-2) which leads to the factorization (x+3)(-x+2)

The last thing to do is set each factor equal to 0 and solve for x

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The two roots are x = 3/2 and x = -2

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
Number of comments got maxed out so here's another post.
suter [353]
That’s cool. i need p01nts so imma comment
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