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xeze [42]
3 years ago
14

20 points!

Mathematics
2 answers:
guapka [62]3 years ago
6 0

C

Step-by-step explanation:

15/16-3/8 is equal to 0.5625. One half is 0.5 answer C is closest.

raketka [301]3 years ago
4 0

A .

8/9 - 11/12 =

8×4/9×4 - 11×3/12×3 =

32/36 - 33/36 =

- 1/36

______________________________

B .

6/7 - 1/9 =

6×9/7×9 - 1×7/9×7 =

54/63 - 7/63 =

47/63

_____________________________

C .

15/16 - 3/8 =

15/16 - 3×2/8×2 =

15/16 - 6/16 =

9/16

____________________________

D .

3/5 - 6/11 =

3×11/5×11 - 6×5/11×5 =

33/55 - 30/55 =

3/55

_____________________________

1/2 = 0.5000

A . - 1/36 = - 0.0277

B . 47/63 = 0.7460

C . 9/16 = 0.5625

D . 3/55 = 0.0545

As you can see the closest difference to 1/2 belong to option C .

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Ket [755]

The area of the house is the amount of space on the house.

  • The length of the addition is x + 20
  • The area of the original house is x^2 + 30x + 200

<h3>The length of the addition</h3>

The area of the addition is given as:

Area = x^2 + 10x - 200

Expand

Area = x^2 + 20x - 10x - 200

Factorize

Area = x(x + 20) - 10(x + 20)

Factor out x + 20

Area = (x -10)(x + 20)

The width of the addition is x - 10.

Hence, the length of the addition is x + 20

<h3>The area of the original house</h3>

The dimension of the original house is

x + 20 by x + 10

So, the area is:

Area =(x + 20)(x + 10)

Expand

Area =x^2 + 20x + 10x + 200

This gives

Area =x^2 + 30x + 200

Hence, the area of the original house is x^2 + 30x + 200

Read more about areas at:

brainly.com/question/24487155

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