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Rom4ik [11]
3 years ago
11

Even more 5x + 2(x+7)

Mathematics
2 answers:
AfilCa [17]3 years ago
5 0

Answer: 7x + 14

Step-by-step explanation:

5x + 2(x + 7)

First, we use distributive property to distribute the 2 to the x and the 7. We're left with this expression:

5x + 2x + 14

We can combine 5x and 2x to get 7x

7x + 14

We cannot do anything else with this expression and it is thus is simplest form.

qwelly [4]3 years ago
5 0
14 because 5+2=7 so x=7 and 7+7=14
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Rasek [7]

He must type the remainder of the report by rate 32 words per minute to finish it in 25 minutes

Step-by-step explanation:

The given is:

  • Henry has been typing a book report that contains 1250 words
  • He has been typing for 1/4 hour at a rate of 30 words per minutes
  • He must type the remainder of the report in 25 more minutes

We need to find his rate to finish the remaining report in 25 minutes

∵ Henry has been typing for 1/4 hour at a rate of 30 words per minute

- We must to change \frac{1}{4} hour to minutes

∵ 1 hour = 60 minutes

∴ \frac{1}{4} hour = \frac{1}{4} hour × 60 = 15 minutes

∴ He has been typing for 15 minutes at a rate of 30 words per minute

∵ The number of words has been typed = his rate × time

∴ The number of words has been typed = 30 × 15 = 450 words

∵ The  book report that contains 1250 words

- Subtract the number of words has been typed from the total

   words to find the remaining word in the book

∴ The remaining words = 1250 - 450 = 800 words

∵ He plans to finish them in 25 minutes

- Substitute the number of the remaining words and the time

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∵ 800 = his rate × 25

- Divide both sides by 25

∴ His rate = 32 words per minute

He must type the remainder of the report by rate 32 words per minute to finish it in 25 minutes

Learn more:

You can learn more about the rate in brainly.com/question/10712420

#LearnwithBrainly

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6 0
2 years ago
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denis23 [38]

Answer:

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Step-by-step explanation:

I used the comparison method because I dont know what type of method you needed, sorry. The methods I know would be: the Comparison Method (what I used), the Substitution Method, Elimination Method,Inverse Matrix Method, Cramer's Rule, and the Gauss-Jordan Method.

You can also rewrite this equation to 3x-y=-7 and x-y=-1.

I'm sorry, I dont know what kind of answer you're looking for. I really hope this helps.

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3 years ago
How do you work out 7 2/5 -5 3/5 by subtracting mixed numbers with borrowing
Marat540 [252]

Answer:

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