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Ahat [919]
3 years ago
13

2024 and 40 children in a class the ratio of boys to girls are 4:7 how many are in the clas

Mathematics
1 answer:
andreev551 [17]3 years ago
4 0
There are 12 boys and 21 girls for a total of 33 students
I’m not sure if this is right!
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It's a quadratic equation in disguise. If you let y=x^{-1}, then y^2=x^{-2}, and we can rewrite the equation as

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360 cm^2

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48 + 104 + 78 + 130 = 360

So the SA is 360 cm^2

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