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Ksenya-84 [330]
3 years ago
14

there are 32 students in the school play. the ratio of girls to all students in the play is 5:8. how many girls are in the play?

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
5 0
The answer is 20 girls
Aliun [14]3 years ago
3 0

Answer:

15 girls to total students, i got this by dividing 32 by 8 and I got 4 so the i multiplied 5 times 4 to get 20 hope this helped!

Step-by-step explanation:

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givi [52]

Answer:

38

Step-by-step explanation:

-(5×-7-3)

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6 0
3 years ago
Prove the following using a direct proof:
hodyreva [135]

Answer:

Step-by-step explanation:

Prove: That the sum of the squares of 4 consecutive integers is an even integer.

An integer is a any directed number that has no decimal part or indivisible fractional part. Examples are: 4, 100, 0, -20,-100 etc.

Selecting 4 consecutive positive integers: 5, 6, 7, 8. Then;

5^{2} = 25

6^{2} = 36

7^{2} = 49

8^{2} = 64

The sum of the squares = 25 + 36 + 49 + 64

                                       = 174

Also,

Selecting 4 consecutive negative integers: -10, -11, -12, -13. Then;

-10^{2} = 100

-11^{2} = 121

-12^{2} = 144

-13^{2} = 169

The sum of the squares = 100 + 121 + 144 + 169

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Therefore, the sum of the squares of 4 consecutive integers is an even integer.

8 0
3 years ago
Find the product of the given polynomials. <br> (5x + 8 – 6r) (4 + 2r – 7)<br><br><br>​
Inessa05 [86]

Answer:

-12r² + 10xr - 15x + 34r - 24

Step-by-step explanation:

1. Organize it, variables first - as well as adding constants such as 4 and -7

(5x - 6r + 8) (2r - 3)

2. Start by multiplying the 5x by (2r - 3), then -6r, followed by 8

(10xr - 15x) + (-12r^2 + 18r) + (16r - 24)

3. Simplify

10xr - 15x - 12r² + 18r + 16r - 24

4. Order by greatest to smallest factorial

-12r² + 10xr - 15x + 18r + 16r - 24

5. Combine like variables

-12r² + 10xr - 15x + 34r - 24

6 0
3 years ago
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Lyrx [107]
Simplify 5/10 to 1/2

find the LCD of both fractions and that would be 18

make the denominators the same as the LCD

Simplify, now denominators are equal

join the denominators

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Answer: -1 5/18.

7 0
3 years ago
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sineoko [7]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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