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Sveta_85 [38]
3 years ago
11

at a school

Mathematics
2 answers:
dezoksy [38]3 years ago
8 0

Answer:

Total students  = 1240

Step-by-step explanation:

Boys : girls = 11 : 9

Number of boys  = 11x

Number of girls  = 9x

11x - 9x = 124

       2x = 124

         x = 124/2

        x = 62

Number of boys  = 11x = 11 *62 = 682

Number of girls  = 9x   = 9*62    = 558

Total students  = 682 + 558 = 1240

bonufazy [111]3 years ago
5 0

Answer:

1240 students.

Step-by-step explanation:

There are 558 girls and 682 boys

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FOIL stands for First, Outside, Inside, Last. 

In your equation you have (6x-2)(6x+2)
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First: Means first terms of each set. In this case 6x and 6x
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Outside: Means terms found in the outside areas of the whole equation, in this case it is 6x and 2
6x x 2 = 12x Now this is the second term

Inside: Means terms found in the inside areas of the whole equation, in this case it is -2 and 6x
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Last: Means the last terms of each set. In this case it is -2 and 2
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Now you have what you need for your new equation:

36x^{2} + 12x -12x - 4

Because your second and third terms are like terms, you can combine them by doing the operation indicated. 12x-12x = 0 so now you can cancel it out from your equation and your left with:

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Answer:

The answer to your question is below

Step-by-step explanation:

Process

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