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Orlov [11]
3 years ago
7

Valerie predicts she will be able to hold her breath for 31 second while underwater. If she actually held her breath for 34 seco

nds, what was Valerie's percent error? Round your answer to the nearest tenth of a percent.
Mathematics
2 answers:
Pani-rosa [81]3 years ago
6 0
(predicted value - exact value)/exact value * 100
(31 - 34)/34 * 100 = 8.8%

djyliett [7]3 years ago
3 0

Answer:

8.8


Step-by-step explanation: 8.8



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Megan drove from her house to work at an average speed of 45 miles per hour. The drive took her
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Answer:

30 mph

Step-by-step explanation:

The average speed = Total distance / Total Time

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t = 20 minutes = 20/60 = 1/3 hour.

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d = r * t

d = 45 * 1/3 = 15 miles.

Average Speed going home.

t =  30 minutes

t = 30 min / 60 min // hour = 1/2 hours

r = 15 miles / 1/2 = 15 * 2 =  30 miles / hr.

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Is there any bias in the survey question? In other words, do you think the wording of the question influences your answer? If so
saul85 [17]

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7 0
3 years ago
An expression is shown.
Veseljchak [2.6K]

Answer:

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Step-by-step explanation:

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To simplify this expression and get an expression that is eual to 5x + 3y - 2x - 2y - 3 I used <em>like terms</em> :

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6 0
3 years ago
Read 2 more answers
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