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Furkat [3]
3 years ago
8

At Southside Middle School, 30% of the students play an instrument. There are 310 students. How many students play an instrument

? 93 students 130 students 217 students 290 studentsAt Southside Middle School, 30% of the students play an instrument. There are 310 students. How many students play an instrument?
Mathematics
1 answer:
rodikova [14]3 years ago
5 0

93 students play an instrument because you would take 310 (the total amount of students) and multiply it by 0.3 (the thirty percent) and get 93

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Step-by-step explanation:

There is a relation between the three sides of the right triangle

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  • The relation between them is: (hypotenuse)² = (leg1)² + (leg2)²

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∵ She turns to bike 13 miles east

∵ South and East are perpendicular

→ That means the distance from her start point to end point represents

   a hypotenuse of a right triangle, whose legs are 7 and 13

∴  (hypotenuse)² =  (leg1)² + (leg2)², where

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  • leg2 is her distance in east direction

∵ Leg1 = 7 miles

∵ leg 2 = 13 miles

∴ (hypotenuse)² =  (7)² + (13)²

∴ (hypotenuse)² = 49 + 169

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∴ hypotenuse = \sqrt{218}

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∴ She is about 14.765 miles (\sqrt{218} miles) from where she started.

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3 years ago
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