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Gennadij [26K]
3 years ago
8

For every three girls taking classes at a martial arts school, there are 4 boys who are taking classes. If there are 236 boys ta

king classes, predict the number of girls taking classes at the school
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Answer:

177 girls

Step-by-step explanation:

We get 177 girls by multiplying 236 by 0.75. We do this because 236 divided by 4 is 59. 59 is what we would multiply 3 by. Alternitivly, we can multiply 236 by 0.75 because there would only be 3/4 of the total amount of girls.

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Linear System, substitutional method<br><br> 5x+4y=32 <br> 9x-y=33<br><br> helppp
Pachacha [2.7K]
5x + 4y = 32 ⇒ 45x + 36y = 288
9x -  1y = 33 ⇒ <u>45x -    5y = 165</u>
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                                     41      41
                                        y = 3
                            5x + 4(3) = 32
                              5x + 12 = 32
                               <u>    - 12  - 12</u>
                                      <u>5x</u> = <u>20</u>
                                       5      5
                                        x = 4
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6 0
3 years ago
Evaluate the expression, if possible: √ 64
astraxan [27]

The square root of a number is the smallest (positive) number possible that when multiplied by it self equals the number in the square root.

The square root of 64 is 8 ( 8 x 8 = 64).

The answer is B.

7 0
4 years ago
1. The dimensions of Mr. Bell's living room are 10 feet x 8 feet x 2 feet, and the dimensions of his kitchen are 20 feet x 2 fee
romanna [79]

Answer:

more detail

Step-by-step explanation:

8 0
3 years ago
Find the percentage of vacationers from<br> question 10 who spent between $1500<br> and $2000.
mars1129 [50]

Answer:

The percentage change of vacationers is 33.3 %

Step-by-step explanation:

Given as :

The old value of the vacationers = $ 1500

The new value of the vacationers = $ 2000

Let the percentage variation = x %

Or, x % increase = \dfrac{\tyextrm new value - \textrm old value}{\textrm old value} × 100

Or,  x % increase = \dfrac{\tyextrm $ 2000 - \textrm $ 1500}{\textrm $ 1500} × 100

Or, x % increase = \frac{500}{1500} × 100

Or, x % increase = \frac{1}{3} × 100

Or, x % increase = \frac{100}{3}

∴  x  = 33.3 %

So, The percentage increase change is 33.3 %

Hence The percentage change of vacationers is 33.3 %   Answer

3 0
3 years ago
Pierre is rowing his kayak on a lake. He moves miles in 18 minutes. At this rate, how far would he move in 30 minutes?
Anika [276]

Answer:

Step-by-step explanation:

times the number so 18 times 30

5 0
3 years ago
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