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boyakko [2]
3 years ago
8

Twice a number x increased by 10 is 52

Mathematics
1 answer:
musickatia [10]3 years ago
4 0

Answer:

x = 21

Step-by-step explanation:

the equation is 2x + 10 = 52

2x = 42

x = 21

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Stephanie can type around 70 words per minute. She has less than a week to type her final research paper. If the paper has to be
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The answer is 1.25 hours.

STEP 1.
Each page has about 350 words:    1 page - 350 words
15 pages is x words:                         15 pages - x words
1 : 350 = 15 : x
x = 15 * 350 : 1 = 5250

So, she has to type at least 5250 words.

STEP 2:
<span>Stephanie can type around 70 words per minute:     70 words - 1 minute
x words in 1 hour = 60 minute:                                        x words - 60 minute

70 : 1 = x : 60
x = 70 * 60 : 1 = 4200

So, she types around 4200 words per hour.


STEP 3:
Now we have:
</span>- she has to type at least 5250 words
- she types around 4200 words per hour

5250 : x = 4200 : 1
x = 5250 * 1 : 4200 = 1.25 hours
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3 years ago
Making an inference is the second part of the process of investigating a
Mademuasel [1]

Answer:

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Answer:

3. A=B=70°; C=D=110°

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Step-by-step explanation:

Same-side angles of a trapezoid add to 180°.

___

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3x + 15 = 180 . . . . simplify

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C = 180° -132° = 48°

8 0
3 years ago
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