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gizmo_the_mogwai [7]
3 years ago
11

Susan was writing a paper for English, and she thought it was going to take her 4 hours to write. In fact, it took her 6.5 hours

. What was her percent error? (Nearest tenth)
PLEASE EXPLAIN!
Mathematics
2 answers:
Goryan [66]3 years ago
7 0

Answer:

61.5%

Step-by-step explanation:

i could be wrong

-Dominant- [34]3 years ago
5 0

Answer:

62.5%

Step-by-step explanation:

Percent Error = |\frac{actual~result~-~expected~result}{expected~result}| = |\frac{6.5-4}{4}| = |\frac{2.5}{4}| = 0.625 = 62.5 \%

Your percent error is 62.5%

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rodikova [14]

The present age of mother and her daughter respectively are; 40 and 10 years respectively.

<h3>How to Solve Algebra Word Problems?</h3>

Let x and y be the present age of mother and her daughter respectively.

Therefore;

x + y = 50

x = 50 − y     .....(1)

After 20 years, mother's age will be twice her daughter's age at the time. Thus;

x + 20 = 2(y + 20)

x − 2y = 20     .....(2)

Plugging eq 1 into eq 2 gives us;

50 − y − 2y = 20

3y = 30

y = 10

Thus;

x = 50 − 10

x = 40

Thus, the present age of mother and her daughter is 40 and 10 years respectively.

Translation of the question into English is;

The sum of the present ages of mother and her daughter is 50 years. After 20 years, mother's age will be twice her daughter's age at the time. Find their present ages.

Read more about Algebra Word Problems at; brainly.com/question/21405634

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agasfer [191]

Answer:

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Step-by-step explanation:

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Ana is having dinner at a restaurant. Her bill before adding sales tax and tips is $23.20. The restaurant add the sales tax of 7
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Start by finding 7% of the $23.20:

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Now add this to $23.20:

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\frac{18}{100} *24.824=4.46832

This is the tip amount. And finally, let's add this to the 24.824:

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Hope this helps.
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Answer:

2,4,5, and 6

Step-by-step explanation:

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What number is 0.01 less than 24? A: 23 B: 23.09 C: 23.9 D: 23.99
antiseptic1488 [7]

Answer: D: 23.99

Step-by-step explanation:

      What number is 0.01 less than 24?

The number 0.01 less than 24 is equal to 24 - 0.01;

24 - 0.01 = 23.99

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