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3 years ago

There are 39 students in a class.

Mathematics

2 answers:

Shkiper50 [21]3 years ago

8 0

Female students = 16/39
to get a percentage: (16/39)x100
percentage = 41%

tekilochka [14]3 years ago

4 0

The percentage is 41%

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Keisha, Miguel, and Pablo sent a total of 69 text messages during the weekend. Miguel sent 5 more messages than Keisha. Pablo se

frutty [35]

Number of text messages Keisha sent: 16

Number of text messages Miguel sent: 21

Number of text messages Pablo sent: 32

Step-by-step explanation:

Total messages sent = 69

Let,

Messages sent by Keisha = x

Messages sent by Miguel = y

Messages sent by Pablo = z

According to given statement;

x+y+z=69 Eqn 1

y=x+5 Eqn 2

z=2x Eqn 3

Putting Eqn 2 and 3 in Eqn 1

$x+(x+5)+2x=69\\x+x+5+2x=69\\4x=69-5\\4x=64$

Dividing both sides by 4;

$\frac{4x}{4}=\frac{64}{4}\\x=16$

Putting x=16 in Eqn 2

$y=16+5=21$

Putting x=16 in Eqn 3

$z=2(16)=32\\$

Number of text messages Keisha sent: 16

Number of text messages Miguel sent: 21

Number of text messages Pablo sent: 32

Keywords: addition, linear equation

Learn more about addition at:

#LearnwithBrainly

8 0

4 years ago

Work out the surface area of this sphere.<br> Give your answer to 1 decimal place.

bearhunter [10]

Answer:

452.4

Step-by-step equation:

surface area of a sphere formula= 4πr²

plug 6 in for r

4π(6)² =452.389 rounded to 452.4

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3 years ago

Harley has 5 quarts of orange juice to fill some empty glasses. She fills each glass with 14

jonny [76]

Answer:

This question does not make sense

Step-by-step explanation:

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3 years ago

What is the range of the function f(x) = |x| – 3?

Likurg_2 [28]

Why not draw the graph of y=|x|? It has a v-shape, and the vertex is at (0,0).

The graph of f(x) = |x| - 3 looks exactly the same, EXCEPT that the whole graph of |x| is shifted 3 units downward. The smallest value that y can have is therefore -3.

Can you now figure out the range of f(x)?

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3 years ago

You have 100 dollars in your bank account the first year your account increases 7% the second year it decreases 7% how much mone

Elena-2011 [213]

Answer: Stay the same, 100

Step-by-step explanation: well 7%-7% still equals zero. So it’s not effected, I think.

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3 years ago