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ozzi
3 years ago
5

There are 28 students in class the ratio of girls to boys is 3:4. How many girls

Mathematics
2 answers:
Gwar [14]3 years ago
8 0

Step-by-step explanation:

let the num be 3x & 4x

3x+4x=28

7x=28

x=28/7

x=4

now, num of girls=3x=3×4=12

& num of boys=4x=4×4=16

Elis [28]3 years ago
4 0

Answer: 12 girls

Step-by-step explanation: You first want to make this equation become a fraction with the number of girls on top and the total on bottom. This becomes 3/7. To make this over 28, multiply by 4 on the top and the bottom. This makes 12/28, making 12 girls the answer.

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An elevator in a mine shaft is stopped at a .25 feet below ground level. And then travels 28 feet downward. What equation can be
ankoles [38]

Correct question:

An elevator in a mine shaft is stopped at 25 feet below ground level. And then travels 28 feet downward. What equation can be written to find the final position in feet of the elevator in relations to ground level?

Answer:

-53 feets

Step-by-step explanation:

Initial stop point = 25 feets below ground level

Further distance traveled = 28 feets below ground level

Final position in feet = Initial stop point + further distance traveled

Note : distances or point traveled below ground level or downward is represented as negative.

Final position in feets = (-25)feets + (-28)feets

Final position in feets = - 53 feets

3 0
3 years ago
Which proportion could be used to find the length of side b?
natima [27]

Answer:

sin23/6.2 = sin85/b

Step-by-step explanation:

Just did it!

3 0
3 years ago
How do I do number 10
kakasveta [241]
I am guessing you have to rotate it 180 degrees and see if it fits in the area in which it’s supposed to fit it’s there another part to the question?
4 0
3 years ago
Read 2 more answers
Drag expressions into order to show a way to find 3 × 56.
lina2011 [118]
As we could "drag" these together, we could then do it the easy way.

  56
+56
+56
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168
------------------------

Or we could also do the following:

56*3:

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Carry the one. 

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7 0
3 years ago
Read 2 more answers
PLZ ! PLZ! PLZ!
Soloha48 [4]

Answer: Yes they could.

Step-by-step explanation:

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The two triangles have the side:side ratio, meaning they are similar

Because they are similar, their hypotenuses <em>could</em> lie along the same line, not guaranteed, but possible.

3 0
3 years ago
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