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posledela
3 years ago
14

Help help help help help help help

Mathematics
2 answers:
vova2212 [387]3 years ago
4 0
All together there are 48 + 30 books, which comes out to 78 books.  All discount packages contain the same number of books.

Think of the products of integers equal to 48:  3*16, 4*12, 6*8.  Are there more?

Think of the products of integers equal to 30:  3*10, 5*6, 2*15.  Are there more?

Think what these sets of factors have in common:  there could be 8 packages of 6 science books (48 books total); there could be 5 packages of 6 mysteries (30 total).   Doing this, we ensure that every package has the same number of books (6).  We can make (8+5), or 13, packages.

Check:  Does (6 books/package)(13 packages) = 78 books?  YES.
attashe74 [19]3 years ago
3 0

Answer:

6

Step-by-step explanation:

78/6=13

You might be interested in
Determine the center and radius of the following circle equation:
-BARSIC- [3]

Answer:

(6, 9 ) and r = 3

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Given

x² + y² - 12x - 18y + 108 = 0

Rearrange the x- terms and the y- terms together and subtract 108 from both sides, that is

x² - 12x + y² - 18y = - 108

To obtain standard form use the method of completing the square

add ( half the coefficient of the x and y terms )² to both sides

x² + 2(- 6)x + 36 + y² + 2(- 9)y + 81 = - 108 + 36 + 81

(x - 6)² + (y - 9)² = 9 ← in standard form

with centre = (6, 9 ) and r = \sqrt{9} = 3

7 0
3 years ago
What is 3-3 x 6+2=?????????????????????????????????
Dominik [7]
 3-3 x 6+2= -13
The answer= -13
5 0
2 years ago
Read 2 more answers
PLEASE HELP
Margaret [11]

Answer:

$21

Step-by-step explanation:

First, find the price without the discount by adding 12 to 30:

30 + 12

= 42

To find the original cost of each game, divide 42 by 2

42/2

= 21

So, each game was originally $21

5 0
2 years ago
3 less than g is less than or equal to 17.​
yaroslaw [1]

Answer:

3 < g ≤ 17

Step-by-step explanation:

3 0
3 years ago
A triangle is drawn on the coordinate plane. It is translated 4 units right and 3 units down. Which rule describes the
Lynna [10]
The correct answer is:

(x,y) - (x + 4, y - 3)

I hope this has helped you.

Any doubts or questions, please ask in comments and I’ll happily assist you.
7 0
3 years ago
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