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jonny [76]
3 years ago
11

Celina measured the height of a window frame as 5.55 feet, but the actual height was 6 feet. What is the percentage of error in

Celina's measurement? A: 6.45% B: 7.50% C: 9.12% D: 13.33%
Mathematics
1 answer:
iVinArrow [24]3 years ago
5 0
1) 6 - 5.55 = 0.45 feet (the difference between 6 and 5.55)
2) 0.45/6 * 100 = 7.5% (the percentage of error in Celina's measurement)
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7 0
2 years ago
Help with this math question please
Masja [62]
| -6x - 3 | > 15

This expression can be written as:

a) -6x - 3 > 15 
b) -15 > - 6x - 3

Solving a part:

- 6x - 3 \ \textgreater \  15 \\  \\ &#10;- 6x \ \textgreater \  18 \\  \\ &#10;x \ \textless \  -3

Solving b part:

-15 \ \textgreater \  - 6x - 3 \\  \\ &#10;-12 \ \textgreater \  - 6x \\  \\ &#10;2 \ \textless \  x

or we can write:
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7 0
3 years ago
2(3x-2)=14 pls help
Temka [501]
2(3x-2)=14

1) Distribute 2
(6x-4)=14
2) Add (4) one both sides
6x-4=14
6x+4=14+4
6x=18
3) Divide 6 one both sides
6x / 6 = 18 / 6
4) Solve
X=3

Hope it helps
7 0
3 years ago
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