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ivann1987 [24]
3 years ago
6

A grade has 81 girls and 72 boys. the grade is split into groups that have the same ratio of girls to boys as the whole grade. h

ow many girls are in a group that has 16 boys? 81:72, x:x, x:16
Mathematics
1 answer:
Arturiano [62]3 years ago
3 0

Answer:

<u>There are 18 girls in a group that has 16 boys.</u>

Step-by-step explanation:

1. Let's review the information given to us for solving the question:

Number of girls in the grade = 81

Number of the boys in the grade = 72

Number of students in the grade = 81 + 72 = 153

2. Let's find the number of girls in a group that has 16 boys.

For getting that number we will use the Rule of three simple, this way:

Number of girls in a group that has 16 boys = (81 * 16)/72

Number of girls in a group that has 16 boys = 1,296 / 72

<u>Number of girls in a group that has 16 boys = 18</u>

<u>There are 18 girls in a group that has 16 boys.</u>

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VLD [36.1K]

Answer:

5 feet of wall should be on each side of the painting.

Step-by-step explanation:

Given that a 3 foot wide painting should be centered on 13 foot wide wall, to determine how many feet should be on each side of the painting, the following calculations must be performed:

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2 years ago
3.
sergey [27]

Answer:

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Step-by-step explanation:

* Lets revise the rules of simple interest

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• P = Principal Amount

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The gray line is longer than the white line.
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White    -------------------------

Gray      ------------------------------------------

Black     --------------------------------------------------------

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