The ratio of boys to girls in Anya's class is 3 to 9. There are 27 boys. How many girls are there?
56
30
81

81 girls are in the class

Step-by-step explanation:

in these kinds of questions to find the amount of girls in the class we need to first divide the given number; which in this case is 27, with the starting number; which is 3, and we get 9.  Using the 9 we got from the earlier equation we will multiply the 9 by the number of girls in the class, which is also 9 and we get 81 as our answer.

this shows a reflection over the x-axis and is translated one unit down and 6 units to the right (x + 6, y - 1)

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~just a girl in love with shawn mendes

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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