3 years ago

enrollment in the school orchestra was 340 last year. this year , it dropped 15%. A. what is the enrollment this year?

1 answer:

6 0

289. You multiple 340 by 15% and get 51. 340 - 51 = 289.

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Zanzabum

Answer:

x = 12

Step-by-step explanation:

The diagram shows an equilateral triangle (because all angles are congruent). All sides in equilateral triangle are congruent, so

$4x-10=5x-22=3x+2$

Solve the equation

$4x-10=5x-22\\ \\4x-10-4x=5x-22-4x\\ \\-10=x-22\\ \\-10+22=x-22+22\\ \\12=x$

Check this value:

$4x-10=4\cdot 12-10=48-10=38\ units \\ \\5x-22=5\cdot 12-22=60-22=38\ units\\ \\3x+2=3\cdot 12+2=36+2=38\ units$

Thus, $x=12$

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Hunter-Best [27]

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Pachacha [2.7K]

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dusya [7]

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Step-by-step explanation:

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