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skad [1K]
3 years ago
8

HELPPPPPO

Mathematics
1 answer:
Rina8888 [55]3 years ago
6 0

Answer:

150

Step-by-step explanation:

'x' = number of students out of 500 who selected math

18/60 = x/500

cross-multiply:

60x = 9000

x = 150

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On a sunny day, cindy notices that her shadow is 21 inches long. if it is 75 inches from the top of her head to the end of the s
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a²+b²=c²        a=21, the length of the shadow
                       b= ? cindy's height
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21²+ b²=75²
441 +b² = 5625
-441         -441
------         -------
  0             5184
b² = 5184
√b² =√5184
b= 72

hope it helps
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3 years ago
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Answer:

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Step-by-step explanation:

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