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saw5 [17]
3 years ago
15

The school principal is designing a square courtyard outside of school, separated into 4 equal spaces. She wants to know the tot

al area of the courtyard. S = length (ft) of one wide of each space. Which expression shows the total area of the courtyard.
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
4 0

Answer:

A=S1+S2+S3+S4

Step-by-step explanation:

A=4(l*w)ft

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The ratio of the number of men to the number of women in a sports club is 5:2.
user100 [1]

Let the number of men and the number of women in the beginning be x and y

Now,\sf  \frac{x} {y} =\frac{5}{2} \\\\\sf=2x=5y \\\\\sf=x=\frac{5y}{2}

Now, In 2nd case,

No. Of men=x-63 and no. Of women =y-12

Now,the ratio becomes\frac{x-63}{y-12}=\frac{7}{4} \\\\\sf=4(x-63)=7(y-12) \\\\\sf=4x-252=7y-84 \\\\\sfPutting,\:x=\frac{5y}{2}\:in\: 4x-252=7y-84\:we\: get, \\\\\sf10y-252=7y-84 \\\\\sf=10y-7y=252-84 \\\\\sf=3y=168 \\\\\sf=y=56 \\\\\sf=\boxed{Y=56}

Now,we have, 2x=5y

Putting the value of Y=56 in 2x=5y,we get,

\sf 2x=5\:x\:56 \\\\\sfx=\frac{5\:x\:56}{2} \\\\\sfx=\frac{5\:x\: \cancel{56}\:\:28}{ \cancel{2}} \\\\\sf=x=5\: x\: 28 \\\\\sfx=140 \\\\\sf\boxed{x=140}

Hence, the number of men was 140 and the no. of women was 56

Hi...I am from India.. Where are you from?

8 0
3 years ago
A bag contains 28 marbles: 9 black, 14 red, and 5 blue. A marble is drawn from the bag at random.
prohojiy [21]

Answer:

steps

1) 14/28 to convert to a percent you have to first divide the numerator from the demoninator and then  you  multiply by 100 and you get get %50 (you could had known bc 14 is half of 28)

2) 5/28 do the same thing as the first step and get %17.85

-Feel free to ask for more help :)

6 0
3 years ago
6 divided by 1/4<br> 24 <br> 59<br> 67<br> 18<br> eplain how u did it
Cloud [144]

Answer:

24

Step-by-step explanation:

6 divided by 1/4 is the same thing as 6 multiplied by 4, so the answer is 24.

6 0
3 years ago
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zloy xaker [14]
C is identity 

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A is identity

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7 0
3 years ago
The sides of a triangle have lengths 4, 9, and 11. What kind of triangle is it?
aalyn [17]

Answer:Scalene Triangle

Step-by-step explanation:

In a scalene triangle,all sides are not equal

4 0
3 years ago
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