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tigry1 [53]
3 years ago
14

After reading 7/9 of a book , 40 pages are left .How many pages are there in the book

Mathematics
2 answers:
zimovet [89]3 years ago
6 0

Answer: 180 pages

Step-by-step explanation:

Let the equation be

x - 7/9x = 40

9x - 7x = 360

x = 360 / 2 = 180

The book has total 180 pages

Means he has read (180 - 40) = 140 pages

disa [49]3 years ago
3 0

Answer:

180 pages

Step-by-step explanation:

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A college student completed some courses worth 3 credits and some
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Answer:

  • A. 13

Step-by-step explanation:

<u><em>Note:</em></u><em> It seems typo in the question. 5% should read 59.</em>

Let 3 credit courses = x, 4 credit courses = y

<u>As per  given we have following equations:</u>

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<u>Solve the system by elimination. Multiply the first equation by 4 and subtract the second one:</u>

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The answer is 13

Correct choice is A

4 0
3 years ago
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Delvig [45]

Answer:1. Is right 3 down 5, because to get from x(0,0) to x'(3,-5), you need I shift to the right 3 and downwards 5.

2. Counterclockwise 180 degrees. This is because 180 degrees is half of a full rotation (360 degrees), meaning the point would be the same no matter which way you rotated 180 degrees.

3. Clockwise 90 degrees. Going counter clock wise 270 degrees is like going around 3/4 of a circle (because 270/360 is 3/4). Just as well, going clock wise 90 degrees is like going 1/4 of the circle, but in the opposite direction. This means they will both land at the same point.

Hope this Helps!

Step-by-step explanation:

8 0
3 years ago
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grigory [225]
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3 years ago
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4 Points
Vladimir [108]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Pip was thinking of a number subtracts 13 and gets answer of 30.3 what was original number
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Answer:

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Step-by-step explanation:

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