1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arlecino [84]
3 years ago
14

There are 11 books on a shelf. 6 of these books are new. The rest are used. What is the ratio of NEW books to USED books? (hint:

new + used = books on a shelf) *
1 point
A)11 to 6
B)6 to 11
C)6 to 5
D)5 to 6
Mathematics
1 answer:
N76 [4]3 years ago
6 0

Answer:

C) 6 to 5

Step-by-step explanation:

if there is 6 new books there is 5 used books (11 - 6 = 5)

so new to used is 6 to 5

You might be interested in
HELPP MEEE PLEASEEEEE!
snow_lady [41]

Let $a=x+\tfrac{5}{2}$. Then the expression $(x+1)(x+2)(x+3)(x+4)$ becomes $\left(a-\tfrac{3}{2}\right)\left(a-\tfrac{1}{2}\right)\left(a+\tfrac{1}{2}\right)\left(a+\tfrac{3}{2}\right)$.

We can now use the difference of two squares to get $\left(a^2-\tfrac{9}{4}\right)\left(a^2-\tfrac{1}{4}\right)$, and expand this to get $a^4-\tfrac{5}{2}a^2+\tfrac{9}{16}$.

Refactor this by completing the square to get $\left(a^2-\tfrac{5}{4}\right)^2-1$, which has a minimum value of $-1$.

Similar to Solution 1, grouping the first and last terms and the middle terms, we get $(x^2+5x+4)(x^2+5x+6)+2019$.

Letting $y=x^2+5x$, we get the expression $(y+4)(y+6)+2019$. Now, we can find the critical points of $(y+4)(y+6)$ to minimize the function:

$\frac{d}{dx}(y^2+10y+24)=0$

$2y+10=0$

$2y(y+5)=0$

$y=-5,0$

To minimize the result, we use $y=-5$. Hence, the minimum is $(-5+4)(-5+6)=-1$, so $-1+2019 = \boxed{\textbf{(B) }2018}$.

Note: We could also have used the result that minimum/maximum point of a parabola $y = ax^2 + bx + c$ occurs at $x=-\frac{b}{2a}$.

Solution 4

The expression is negative when an odd number of the factors are negative. This happens when $-2 < x < -1$ or $-4 < x < -3$. Plugging in $x = -\frac32$ or $x = -\frac72$ yields $-\frac{15}{16}$, which is very close to $-1$. Thus the answer is $-1 + 2019 = \boxed{\textbf{(B) }2018}$.

Solution 5 (using the answer choices)

Answer choices $C$, $D$, and $E$ are impossible, since $(x+1)(x+2)(x+3)(x+4)$ can be negative (as seen when e.g. $x = -\frac{3}{2}$). Plug in $x = -\frac{3}{2}$ to see that it becomes $2019 - \frac{15}{16}$, so round this to $\boxed{\textbf{(B) }2018}$.

We can also see that the limit of the function is at least -1 since at the minimum, two of the numbers are less than 1, but two are between 1 and 2.

5 0
3 years ago
What is 1+1........................
elena-14-01-66 [18.8K]
2 I don’t think that’s something you should be asking help on
4 0
3 years ago
Read 2 more answers
The answer please please <br> A.45<br> B. 50<br> C.39.5<br> D. 47.5
7nadin3 [17]

Answer:

D. area=47.5

Step-by-step explanation:

3.5+5+7+32

8 0
3 years ago
The histogram shows the weekly rates charged by different daycares for a 2-year-old child.
serious [3.7K]

Answer: the answer in c on edge

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP!! MEEEEE 1
mestny [16]

Answer:

(1,2) (3,2) ( 5,2)

Step-by-step explanation:

Each input value can only go to one output value

The only one that has each input only going to one output is (1,2) (3,2) ( 5,2)

8 0
3 years ago
Other questions:
  • 1/2 as long as 8 meters equals ? meters
    9·1 answer
  • A cube has a volume of 125 cm3. what is the length, in centimeters, of each side of the cube?
    13·1 answer
  • If you multiply a binomial by a binomial how many terms are in the product before combining like terms?
    12·1 answer
  • Write and solve an equation to find the unknown side length x (in inches). Perimeter =24.2 in.
    14·1 answer
  • A tetrahedral, or four-sided die, can come up 1, 2, 3, or 4. The outcome of a single roll is the number at the base of the pyram
    13·2 answers
  • Help I've been working on this for 2 hours simplify all should contain only positive exponents
    10·1 answer
  • 32. Mariah bought a shirt for $28.50 and a
    5·1 answer
  • Which ordered pairs are solutions for y=3x-5? choose all that apply
    11·1 answer
  • Donovan and Timothy solved two different division problems. Who solved the problem correctly?
    10·1 answer
  • Which table shows a proportional relationship between x and y?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!