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Serga [27]
2 years ago
8

In a group of students, the ratio of girls to boys is 3 to 2. If there are 15 girls, how many total students are there?

Mathematics
1 answer:
lozanna [386]2 years ago
8 0
25 because 3×5=15 so 2×5=10 then add 15+10=25
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Find the distance between each pair of points E(-1, 0),F(12, 0)
Olegator [25]

Answer:

The answer is

<h2>13 \:  \: units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

<h3>d =  \sqrt{ ({x1 - x2})^{2}  +  ({y1 - y2})^{2} }  \\ </h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

E(-1, 0) and F(12, 0)

The distance between them is

<h3>|EF|  =  \sqrt{ ({ - 1 - 12})^{2}  +  ({0 - 0})^{2} }  \\  =  \sqrt{ ({ - 13})^{2} }  \\  =  \sqrt{169}</h3>

We have the final answer as

<h3>|EF| = 13 \:  \: units</h3>

Hope this helps you

5 0
3 years ago
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Anettt [7]

Answer:

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Step-by-step explanation

The number of hours it will take for the sample to double can be found using the 72 rule.

The 72 rule is such that a growth rate would double itself by it is used in dividing the number 72 as shown below:

number of hours =72/8=9 hours

The number of hours it would take the sample to double is 9 hours as computed above.

6 0
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a recipe calls for 3/4 of a cup of flour to make 5/8 of a pond of bread dough . how many cups of flour are needed to make 1 poun
Ksenya-84 [330]
6/5 cup

Thank you hope this helps
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Galina-37 [17]

Answer:

10

Step-by-step explanation:

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the answer is 6/13 because 12/26 reduces so the answer is 6/13

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3 years ago
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