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
Kamila [148]
3 years ago
6

I ordered some books online for myself and friends. ​Each book costs \$ 13$13 and the store charges a flat rate for shipping of

\$ 20$20. ​ ​Write an expression for the cost of buying nn books.
Mathematics
1 answer:
Sonbull [250]3 years ago
8 0

Answer: 13n + 20

Step-by-step explanation:

The cost of each book is $13. That means that if you end up buying "n" books, cost would be:

= Cost of each book * number of books

= 13 * n

= 13n

You would also get charged a flat rate for shipping of $20 which would be added to the above cost to bring a total of:

= 13n + 20

You might be interested in
9 1/9 X 1 2/7<br> Please help me. <br> Thank you!!!!!
skad [1K]
It's 11 5/7

Hope this helped!
8 0
4 years ago
Read 2 more answers
Please solve the one below the one I solved
Nady [450]
10/2=35/x
5=35/x
5x=35
X=35/5
X=7
You would need 7 cups
Hope this helps!
7 0
3 years ago
Read 2 more answers
One x-intercept of the graph of the of the cubic function f(x) = x^3 – 2x^2 – 111x – 108 is –9.
katrin2010 [14]

Answer:

The zeros of the given function are -9,-1 and 12.

Step-by-step explanation:

The given function is

f(x)=x^3-2x^2-111x-108

It is given that the x-intercept of the graph is -9, therefore -9 is a zero of the function.

Since -9 is the zero of the function, therefore (x+9) is a factor of f(x). Use synthetics method or long division method to divide the function by (x+9).

f(x)=(x+9)(x^2-11x-12)=0

f(x)=(x+9)(x^2-12x+x-12)=0

f(x)=(x+9)(x(x-12)+(x-12))=0

f(x)=(x+9)(x-12)(x+1)=0

Use zero product property and quote each factor equal to 0.

x=-9,-1,12

Therefore zeros of the given function are -9,-1 and 12.

3 0
3 years ago
.......Help Please.........
Sveta_85 [38]

Answer:

57% to the nearest whole number

Step-by-step explanation:

That is (80/139.3) * 100

= 0.5743  * 100

= 57.43%.

8 0
3 years ago
Five consecutive positive integers are chosen at random. If the average of the five integers is odd, what is the remainder when
kupik [55]

Answer:

The remainder would be 1 or 3

Step-by-step explanation:

Consider the 5 consecutive positive integers are,

x,  x + 1,  x + 2,  x + 3,  x + 4,

Average =\frac{\text{Sum of all observation}}{\text{Number of observations}}

Since, the average of these 5 numbers = \frac{x+x+1+x+2+x+3+x+4}{5}

=\frac{5x+10}{5}

= x + 2

If x + 2 = odd,

⇒ x = odd - 2 = odd - even = odd

⇒ x + 4 = odd + even = odd

∵ an odd number is represented by '2n + 1'

Where, n = 0, 1, 2, 3, ........

Now, 2n + 1 = 1( mod 4) if n = even

While, 2n + 1 = 3( mod 4) if n = odd,

Hence, when the largest of the five integers is divided by 4 remainder would be 1 or 3.

4 0
3 years ago
Other questions:
  • Which of these is not allowed here
    7·2 answers
  • How<br> to write 310763136
    6·2 answers
  • Which two whole numbers lies between the square root of 10
    9·2 answers
  • A point is selected at random inside the given figure.
    9·2 answers
  • Solve equation using the algebraic 7.4p-9.2= -2.6+5.3
    10·2 answers
  • What is common to all webpages in a website?<br>A: Content<br>B: Domain name<br>C: Server​
    5·1 answer
  • F(x) = -3x + 2 for x =3
    11·2 answers
  • Helpp!<br> please solve and show the steps thank uuu
    12·1 answer
  • two traders took some books to the market or ratio of 3:4.how many books were taken to the market if first trader had 36 books.​
    7·1 answer
  • 1. If you report to work at 18.00 on a Wednesday and you get off at 02.50 on a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!