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lana66690 [7]
2 years ago
9

A shelf can be packed from end to end with 30 large books or 45 small books.

Mathematics
1 answer:
DerKrebs [107]2 years ago
4 0

Answer:

11

Step-by-step explanation:

since 30÷45 = 2/3 then

The space taken by a small book is equal to

the space taken by 2/3 a large book.

…………………………………………………

<u><em>Calculating the number of large book corresponding to 23 small books</em></u> :

= 23×(2÷3) + 3

= 18.333333333333 (large book)

Then ,Kevin can pack the shelf with (at most) : 30 - 19 = 11 more large books

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alina1380 [7]
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6 0
4 years ago
If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?
Oduvanchick [21]
Remember that (g-f)(x) is g(x)-f(x). We know form our problem that f(x)=4-x^2 and g(x)=6x, so:
(g-f)(x)=g(x)-f(x)
(g-f)(x)=6x-(4-x^2)
(g-f)(x)=6x-4+x^2

Now, to find (g-f)(3), we just need to evaluate (g-f)(x) at 3. In other words, we are going to replace x with 3:
(g-f)(x)=6x-4+x^2
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We can conclude that the correct answer is <span>C.6(3) – 4 + 3^2 </span>

5 0
3 years ago
Two decreased by a half of a number is 1/2 of the number
HACTEHA [7]
Answer:  The number is:  "2" .
_______________________________________________________
The expression is:  2 − (½)x = (½)<span>x  ;
                </span>→<span> in which "x" is the "unknown number".
</span>_______________________________________________________
Explanation:
______________________________________________________
Given:  
_________________________________________________________
"Two decreased by a half of a number is one-half<span> of the number" ; 

Let "x" represent the "unknown number" for which we wish to solve;

Write the expression as:
_________________________________________________
" </span>2 − (½)x = (½)x " .
_________________________________________________
Note:  Add "(½)x" to EACH SIDE of the equation:
_________________________________________________
2 − (½)x + (½)x = (½)x + (<span>½)</span>x ;

to get:
_________________________________________________
       →  2 = 1x ; 

       ↔  1x = 2 ;
 
       ↔ x = 2 .
_________________________________________________
Answer:  The number is:  " 2 " .
_________________________________________________
7 0
4 years ago
There are rational numbers that are integers / true or false
nikitadnepr [17]

This is a true statement.

6 0
3 years ago
Need help with this one
Romashka [77]

Answer: \frac{9g}{4y}

Step-by-step explanation:

\frac{6g}{2} \times \frac{3}{4y}=\frac{18g}{8y}=\frac{9g}{4y}

7 0
2 years ago
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