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Sladkaya [172]
2 years ago
11

This quiz it is rlly hard

Mathematics
1 answer:
lawyer [7]2 years ago
4 0

Answer:

396cm I think.

Step-by-step explanation:

10 x (27 - 8) + 9 x 24

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If 5x+6-19=5 what is x
Troyanec [42]

Answer:

<em>x </em>equals 3.6.

Step-by-step explanation:

A way to solve this equation is to preform the inverse operations on both sides.

1. Add 19 to -19 and 5: 5<em>x </em>+ 6 - 19 + 19 = 5 + 19  ---> 5x + 6 = 24

2. Subtract 6 from 6 and 5: 5x + 6 - 6 = 24 - 6 ---> 5x = 18

3. Divide 5x and 18 by 5: 5x / 5 = 18 / 5 ---> x = 3.6

4. 3.6 is the answer.

To prove it, substitute x with 3.6 in the equation: 5 · 3.6 + 6 - 19 = 5

I hope this made sense and helped you a lot! :)

5 0
3 years ago
Read 2 more answers
What does this symbol means *
m_a_m_a [10]

Answer:

it's a star

Step-by-step explanation:


6 0
3 years ago
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Ana’s age is 8 years less than 4 times her sister’s age.
allsm [11]
(5•4)-8 the answer is 12 because 5 times 4 is 20. Then 20 minus 8 is 12.
6 0
3 years ago
Solve the following equation 3x-1=2x -2/3​
algol13

Answer:

its 13

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A window is being replaced with tinted glass. The plan at the right shows the design of the window. Each unit length represents
PolarNik [594]
The answer is $911.68.

After a little research on the internet, I found the design of the window.
First, you need to find the area of the window which is a composite figure made up of a rectangle and a circle. So, the total area (A) is the sum of the area of the rectangle (A1) and the area of the circle (A2).

Area of the rectangle with length l and width w is:
A = l * w
According to the image, l = 5 ft and w = 4 ft.
A1 = 5 * 4 = 20 ft²

Area of the circle with radius r is:
A = r²π
According to the image, r = 2 ft.
A2 = 2² * 3.14 = 12.56 ft²

The area of the window is:
A = A1 + A = 20 ft² + 12.56 ft² = 32.56 ft²

<span>The glass costs $28 per square foot, so to replace the glass will cost:
</span>32.56 ft² * $28/ft² = $911.68
7 0
3 years ago
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