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abruzzese [7]
3 years ago
15

urgent!!!! house has 30 windows. kids playing outside the house 40% of the windows. how many windows are broken?​

Mathematics
1 answer:
svetlana [45]3 years ago
3 0

Answer:

12 windows

Step-by-step explanation:

Number of windows broken = 40% of 30

                                               = \frac{40}{100}*30\\\\= 4 * 3\\\\= 12

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2 years ago
find the perimeter and diagonal of a square whose area is equal to the area of a rectangle whose length is 9m and breadth is 4m
aalyn [17]
Area\ of\ a\ rectangle:A_{\fbox{ }}=9m\times4m=36m^2\\\\a-side\ of\ a\ square\\\\Area\ of\ a\ square:A_{\fbox{}}=a^2\\\\A_{\fbox{ }}=A_{\fbox{}}\Rightarrow a^2=36m^2\Rightarrow a=\sqrt{36m^2}\Rightarrow a=6m\\\\Perimeter\ of\ the\ square:P=4a\Rightarrow P=4\times6m=\boxed{24m}\\\\Diagonal\ of\ the\ square:d=a\sqrt2\Rightarrow d=\boxed{6\sqrt2\ m}
4 0
3 years ago
These are the fees for sending a package by Media Mail:
Serga [27]
For first pound it is = $2.41
For next six, = 0.41 * 6 = $2.46

Remaining = 7.99 - (2.41 + 2.46) = 7.99 - 4.87 = 3.12

Now, additional pounds = 3.12 / 0.39 = 8
Total weight = 1 + 6 + 8 = 15

In short, Your Answer would be 15 pounds

Hope this helps!
6 0
3 years ago
Solve 5kx + 6 = 7kx for x.<br> А. x=3/k<br> в. х = -2/k<br> с. x =-3/k<br> D. x=2/k
slamgirl [31]

Answer:

A.  x = 3/k.

Step-by-step explanation:

5kx + 6 = 7kx

5kx - 5kx + 6 = 7kx - 5kx

6 = 2kx

x = 6 / 2k

x = 3/k.

7 0
2 years ago
WILL MARK THE CORRECT ANSWER BRAINLIEST!<br><br> Select all the correct answers:
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Answer:

B, D

Step-by-step explanation:

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A.

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This is false equality, so this equation has no solutions.

B.

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This equality is true for all values of x, so this equation has infinitely many solutions.

C.

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This equation has the unique solution.

D.

3x+2-\dfrac{1}{3}(3x)=2+2x\\ \\9x+6-3x=6+6x\\ \\6x+6=6+6x\\ \\0=0

This equality is true for all values of x, so this equation has infinitely many solutions.

E.

x-\dfrac{1}{3}x+2=0\\ \\3x-x+6=0\\ \\2x=-6\\ \\x=-3

This equation has the unique solution.

8 0
2 years ago
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