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Kitty [74]
3 years ago
15

there are 48 students in a school play. the ratio of boys to girls is 5:7. how many more girls than boys are in the school play?

Explain your thinking
Mathematics
1 answer:
Alex Ar [27]3 years ago
3 0
We can use trial or error method here...

If we take 4 table, 4*5 = 20 and 4*7 = 28. 20+28 = 48.
20 : 28 = 5 : 7

So, there are 20 boys and 28 girls in a school play and there are 8 girls more than boys.

If you look over tables and try it out, only 4 table works for the given ratio.
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Answer:

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Step-by-step explanation:

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Here, the equation that models the situation is  

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3 years ago
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Answer: 12.32 is the answer.


Step-by-step explanation: Using the pythagorean thereom we can solve this by using the formula A^2+B^2=C^2.

We substitute in the values,

17^2+B^2=21^2.

Now we simplify.

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We subtract the 289 from both sides,

B^2=152                                                                                                                                                            

Now we use square root to find the answer.

12.32 is the answer.

Hope this helps!


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