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Sedaia [141]
3 years ago
14

At a school the number of boy to girls is 11:9 there are 124 more boys than girls work out the total number of students at the s

chool
Mathematics
1 answer:
12345 [234]3 years ago
5 0

Answer:

1240

Step-by-step explanation:

the explanation is very long but I hope this is correct!

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X = 1 hr lessons and y = 1/2 hr lessons

x + y = 35......y = 35 - x
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40x - 25x = 1115 - 875
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x = 240/15
x = 16 <=== there are 16 one-hr lessons
and 19 half-hr lessons
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