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ASHA 777 [7]
2 years ago
7

Simplify (3x − 8) + (2x + 5) − (4x − 8). A) x − 11 B) x + 5 C) x + 21 D) 9x + 5

Mathematics
2 answers:
lozanna [386]2 years ago
6 0

Answer:

B

Step-by-step explanation:

3x-8+2x+5-4x+8

3x+2x-4x    -8+5+8

     x        +        5      

x+5

timama [110]2 years ago
4 0
The answer is (A) as
When expanded we get:
3x - 8 + 2x + 5 - 4x - 8
After collecting the like terms:
3x + 2x - 4x - 8 + 5 - 8
Now simplify (step by step)
1) 5x - 4x - 8 + 5 -8
2) x - 8 + 5 - 8
3) x -16 + 5
4) x -11

Therefore the answer equals (x - 11) which is option (A)
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The perimeter of a square is 52 cm.<br> Calculate the area of the square
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Answer:

169cm^2

Step-by-step explanation:

The perimeter is the sum of the side lengths of the shape. Since a square has equal side lengths, each side must be the same. Divide 52/4=13cm. 13cm is the length of 1 side. Area is length times width, and since each side is 13, multiply 13cm*13cm to get the area, which is 169cm^2,

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Answer:

Step-by-step explanation:

10/7 x 9/8 = 90/56 = 45/28.

7/9 x 8/10 = 56/90 = 28/45

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2 years ago
A rectangular prism made of wood has a length of 10 centimeters, a width of 8 centimeters, and a height of 12 centimeters. A rec
lukranit [14]

Answer:

Prism volume = lbh

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Hole volume = lbh

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Final volume = 960 - 72 = 888cm^3

 

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3 years ago
Simplify 7m - 11n - n + 5m.
goblinko [34]

Answer:

The simplified form of the given expression is 12(m -n).

Step-by-step explanation:

The given expression is

7m - 11n - n + 5m

We need to simplify the given expression.

Rearrange the terms according to the variables.

7m+5m - 11n - n

On combining like terms, we get

(7m+5m)+( - 11n - n)

On simplification, we get

(12m)+( -12n)

12m -12n

Taking GCF common.

12(m -n)

Therefore the simplified form of the given expression is 12(m -n).

5 0
3 years ago
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