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Arte-miy333 [17]
3 years ago
5

The sixth grade debate team has a boy to girl ratio of 3:8. Which of the following ratios is equivalent to this ratio?

Mathematics
1 answer:
hram777 [196]3 years ago
6 0

Answer:

wow this your first Q

Step-by-step explanation:

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When 18 is subtracted from six times a certain number,the result is -42. what is the number?
vredina [299]
Let x be the number.

Then; 

6x-18=-42 (solve for x now) 
6x=-42+18 
6x=-24 
x=-4 

Therefore, this number would be -4. 

Hope I helped :) 
7 0
2 years ago
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Evaluate the expression x ÷ y for x = 8 and y = 16.
daser333 [38]

Answer:

Step-by-step explanation:

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x ÷ y for x = 8 and y = 16 means : 8/16 = 8/(2×8) = 1/2

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3 years ago
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What common base can be used to rewrite each side of the equation<br> 2<br> 3<br> 5<br> 8
marta [7]

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2.

Step-by-step explanation.

4 0
3 years ago
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How do you do 4(x-3) you have to use distributive property to remove the parentheses..
Oksana_A [137]

Answer:

 4x -12

Step-by-step explanation:

Your question answers itself: you use the distributive property to remove the parentheses.

  4(x -3) = 4(x) +4(-3) = 4x -12

5 0
2 years ago
We want to find the zeros of this polynomial:
fredd [130]

Answer:

x = -3 and x = -3/2

Step-by-step explanation:

After writing down the polynomial, split it; put a line between 3x^2 and -18x. Look and 2x^3 + 3x^2 and -18x - 27 separately and factor them both:

p(x) = 2x^3 + 3x^2 <u>- 18x -27</u>

p(x) = x^2(2x+3) <u>-9(2x+3)</u>

Now notice how x^2 and -9 have the same factor (2x+3). That means x^2 and -9 can go together:

p(x) = (x^2 - 9)(2x+3)

Factor it once more because there's a difference of squares:

p(x) = (x+3)(x-3)(2x+3)

Now just plug in whatever makes the each bracket equal 0:

x = -3, x = 3, and x = -3/2

Those are your zeros.

8 0
2 years ago
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