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Anna11 [10]
2 years ago
13

As mentioned in the school letter there are 145 students in all sections of grade 7. 3/5 of these students are girls. how many g

irls are in grade 7? how many boys are there in grade 7?
Mathematics
2 answers:
Ierofanga [76]2 years ago
7 0
There are 87 girls and 58 boys!

i divided 5 from 145 and got 29.
i multiplied 29 and 3 and got 87.
87 is the girls total.
then subtracted 87 from 145 and got 58.
58 is the boys total.


hope this helps!
DaniilM [7]2 years ago
6 0

Answer:

<h2>You Can do this in two ways. I will shaw both, the first one is more common and more easy :</h2>

Method 1:

  3/5 of 145 = girls  

  boys =  girls - boys  or 2/5

  3/5 x 145 = 87

  girls = 87

  boys = 145-87 = 58

Method 2:

  3/5 of 145 = girls

  boys =  girls - boys  or 2/5

  3/5 x 145 = 87

  girls = 87

   

   2/5 x 145 = 58

   boys = 58

<h2>Thank You</h2>

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The width rectangle is 43 centimeters The perimeter is at least 198 cm let the length of the rectangle be /.
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3 years ago
43/645= I need the to show the work
Licemer1 [7]
I'm guessing you need 43/645 simplified:

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Factors of 43: 1, 43
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Out of the listed factors for each number, which numbers are common between the two? The common factors are 1 and 43. Since we are looking for the GREATEST common factor, which number out of 1 and 43 is the greatest? The GCF is 43.

Second, we can now divide the numerator (43) and the denominator (645) by the GCF we recently found which was 43. 

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Third, our new simplified fraction is 1/15. We collected our new numerator and denominator.

Answer in fraction form: \fbox {1/15}
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