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umka2103 [35]
3 years ago
13

The dual bar chart shows the hair colour of boys and girls in a year group. What fraction of the students are girls? Give your a

nswer in its simplest form

Mathematics
2 answers:
maxonik [38]3 years ago
4 0

Answer:

5/11

Step-by-step explanation:

Black= 22 b + 17 g

Brown= 4 b + 18 g

Blonde= 25 b + 10 g

Red= 21 b + 15 g

  • Total number= 22+17+4+18+25+10+21+15= 132
  • Number of girls= 17+18+10+15= 60
  • Girls are 60/132= 2 × 2 × 3 × 5/ 2 × 2 × 3 × 11= 5/11 of all students
Marizza181 [45]3 years ago
4 0

Answer:

5/11

Step-by-step explanation:

there are 72 boys and 60 girls. that means there are 132 students on total.

60/132 = 5/11

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If Luke pushes his sister in a wagon down the driveway that is 14 meters long and it takes 22 Newtons of force, how much work di
erica [24]

Hello!

The answer is:

Luke did a work of 308N.m or 308 Joules.

<h2>Why?</h2>

When a force is applied on a object making it to move covering a distance we call it "work". The movement caused by the force, will follow the same direction that the force.

We can calculate the work done by using the following equation:

Work=Force*distance*Cos(\alpha)

Where,

Work is the transferred energy.

Force, is the force applied to the object.

Distance, is the distance covered due to the applied force.

α, is the angle at the work is done.

We are given the following information to calculate the work done:

Force=22N\\Distance=14m

So, substituting the given information into the equation to calculate work, we have:

Work=Force*distance\\Work=22N*14m=308N.m

Hence, we have that Luke did a work of 308N.m or 308 Jouls.

Have a nice day!

3 0
3 years ago
13(10 + 2) could be used to simplify which of the following problems?
Veseljchak [2.6K]
Well first you need to show the rest of the problems before i can truely help you sorry.
6 0
3 years ago
I need to know the answer to this problem plz
jekas [21]
Yes because 6×6 is 36 and 9×4 is 36.
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8 0
3 years ago
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lora16 [44]
The answer is 13


If R=4 the the equation would be 4+9 which equals 13.
6 0
4 years ago
Convert the angle \theta=70^\circθ=70 ∘ theta, equals, 70, degrees to radians.
Daniel [21]

Answer:

7/18 pi

Step-by-step explanation:

To convert from degrees to radians, multiply by pi/180

70 * pi/180

7/18 pi

4 0
3 years ago
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