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melomori [17]
3 years ago
11

Meena is helping her school librarian to arrange books on the shelves. Based on this situation, answer the following questions:

(Attempt any 4 questions)
2/3 of the books are Language books and 1/5 are Science books. What can you conclude from this statement?
There are less Language books than Science books
There are more Language books than Science books
They are equal in number
Can’t say anything

If the remaining books are of Mathematics, what is the fraction of those books?
1/15 b) 4/15 c) 2/15 d) 7/15
Mathematics
1 answer:
padilas [110]3 years ago
7 0

Answer:

a) language

b) 2/15

Step-by-step explanation:

For the first part, you can start by making the denominators same

you take the LCM of 3 and 5 which is 15

Language books are now 10/15 since you multiply the nominator and denominator by 5

While science books are 3/15

10/15 : 3/15 making it obvious that language books are more

if the remaining are math books then

total books - (language + science books) = math books

10/15 + 3/15 = 13/15 (non math books)

15/15 - 13/15 are math books making 2/15 of them math books

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Answer:

C but see below.

Step-by-step explanation:

If I'm reading this correctly, you mean 31/24. It really can't be much else.  The sine and cosine are both incorrect because both involve the hypotenuse which must be calculated in order for them to be considered. In addition 31/24 is greater than one which is impossible for both the Sine and the Cosine.

That leaves K and D

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3 years ago
A) x and y are two numbers taken from the list below.
Masja [62]

Answer:

a)

i) we have the equation:

3*x - 2*y

We want to find a common multiple of 3 and 2.

One can be:

3*6 = 18

2*9 = 18

And both numbers 6 and 9 are on the list, then if we take:

x = 6, y = 9

we get:

3*6 - 2*9 = 18 - 18 = 0

The solution is x = 6, y = 9.

ii) The greatest possible value of:

3*x - 2*y

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then we need to have x = 10, y = 5

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iii) Now we want to have the smallest value on x, and the largest one on y, then:

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The smallest value of the equation will be:

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B) We want to solve:

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This is kinda easy, we just need to replace the variables in the equation to get:

5*(a - 4*b) = 5*(-7 - 4*(1/4)) = 5*(-7 - 4/4) = 5*-8 = -40

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Dvinal [7]

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6 0
3 years ago
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