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Art [367]
3 years ago
12

You have a certain number of books in your library. You bought more books to triple your amount, then decide to give 14 away to

your local school. You then give half of your remaining books away to charity. You end with 8 books left. How many books did you start with?
Mathematics
1 answer:
Nastasia [14]3 years ago
8 0

Answer:

10 :)

Step-by-step explanation:

(3x - 14) / 2 = 8

3x - 14 = 16

3x = 30

x = 10

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Find the distance between the points (-13, 20) and (-13, -16)
Lera25 [3.4K]

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2 years ago
Hey guys! Leave the answer in terms of pi :)
DaniilM [7]
A) if the diameter is 13 the radius is 6.5
(6.5 \times 6.5) \times \pi = 42.25\pi  \\  =  132.7323
b)if the diameter is 6 the radius will be 3
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8 0
3 years ago
Out of 100 students,15 passed in english, 12 passed in mathematics, 8 in science, 6 in english and mathematics, 7 in mathematics
Lyrx [107]
Because there are 4 students who passed in all subjects, we can say that only 2 students passed in English and Mathematics only, only 3 students passed in Mathematics and Science only, and no one passed in English and Science only.

Given that we have deduced the number of students who passed in two subjects, we can now solve for the number of students who passed only one subject. 
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                Mathematics = 12 - (4 + 3 + 2) = 3
                Science = 8 - (4 + 3 + 0) = 1

1. In English but not in Science,
                    9 + 2 = 11
2. In Mathematics and Science but not in English
                    3 + 3 + 1 = 7
3. In Mathematics only 
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3. More than one subject only
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It will really be helpful if you draw yourself a Venn Diagram for this item. 
8 0
3 years ago
Read 2 more answers
Algebra! Please help and explain it.
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Answer:

Part of mathematics in which letters and other symbols are used to represent numbers and quantities in formula and equation   Algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis

Step-by-step explanation:

3 0
3 years ago
Can someone help me on this plz thankyou!!
kipiarov [429]
G(x) is a translation of f(x) 5 units up
Giving us g(x)=f(x)+5
So k=5
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2 years ago
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