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2 years ago

12

PLEASE HELP!!!! The following table shows the number of students in a class who like movies and/or music: Like Movies Do Not Lik

e Movies Total Like Music 36 ? 56 Do Not Like Music 15 4 19 Total 51 24 75 What is the missing number in the table? (1 point) 12 20 32 52

1 answer:

Sidana [21]2 years ago

7 0

Answer:20

Step-by-step explanation:

I got it right on my test

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It's an equilateral triangle, therefore

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$\dfrac{3}{2}x-12=\dfrac{1}{2}x-2\qquad\text{multiply both sides by 2}\\\\3x-24=1x-4\qquad\text{add 24 to both sides}\\\\3x=x+20\qquad\text{subtract x from both sides}\\\\2x=20\qquad\text{divide both sides by 2}\\\\x=10$

$BC=BA\to BC=\dfrac{1}{2}(10)-2=5-2=3$

<h3>Answer: BC = 3</h3>

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