2 years ago

Choose the correct proportions.

1 answer:

6 0

Answer:

Answer is option b) 3:4 = 9:12

Step-by-step explanation:

On dividing the numbers 9 and 12 by 3 table we get the ratio 3:4

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Step-by-step explanation:

We know that,

$Z=\dfrac{X-\mu}{\sigma}$

Where,

X = raw score = 84

μ = mean = 68

σ = standard deviation = 10

Putting the values,

$Z=\dfrac{84-68}{10}=1.6$

The percent of his sales that were less than or equal to 84 inches, is

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Therefore, the remaining 100-94.5=5.5% were more than 84 inches.

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The ratio of girls to boys in Liza’s classroom is 5 to 4. How many girls are in her classroom if there is a total of 27 students

prisoha [69]

Answer:

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Step-by-step explanation:

girls : boys = 5 : 4

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Number of boys = 4x

Total students = 27

5x +4x = 27

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x = 27/9

x = 3

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2 years ago

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Answer

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