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aev [14]
3 years ago
10

The ratio of boys to girls in Math class is 3:4. If there are 21 total students in class, how many more girls are in the class t

han boys?
Mathematics
2 answers:
sergij07 [2.7K]3 years ago
8 0
There should be 3 more girls than boys in the class (9 boys, 12 girls)
Bond [772]3 years ago
6 0
3 to 4
3(3+4) is 21
There are 9 boys and 12 girls in the class
Answer=There are 3 more girls than boys
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Step-by-step explanation:

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6 0
3 years ago
Answers need help!!!!!!
Gala2k [10]
<h3>Step-by-step explanation:</h3>

<u>Pythagorus theorum:</u>

9² = 3² + YZ²

81 - 9 = YZ²

√72 = YZ

∴YZ= 8.48 ≈ 8.5

<u>Trigonometry:</u>

We have adjacent as 3, and hypotenuse as 9

cos X = 3/9

X= cos∧-1 (3/9) → <em>[cos inversed]</em>

∴X= 70.5°

We have opposite as 3 and hypotenuse as 9

sin Z= 3/9

Z= sin∧-1 (3/9)→<em> [sin inversed]</em>

∴Z= 19.47 ≈ 19.5

4 0
2 years ago
You have 54 pictures to put in a photograph album. Each page of the album holds 4 pictures. How many pages can you fill?
gregori [183]

Answer:

You can fill 13.5 pages

Step-by-step explanation:

You would do 54 divided by 4 equals 13.5

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2 years ago
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