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
Zinaida [17]
3 years ago
14

Question Help A college bookstore marks up the price that it pays the publisher for a book by 40 %. If the selling price of a bo

ok is $ 70.00 , how much did the bookstore pay for this​ book
Mathematics
1 answer:
Bond [772]3 years ago
8 0
40 % = 0.4
70 • 0.4 =28
70 - 28 = 42$
You might be interested in
The melting point of nitrobenzene is 5.7 C. The melting point of sea water is 8.1 C
sweet [91]
The melting point of sea water is -2.4
4 0
3 years ago
A marketing research company records the consumer habits of a sample of 42 families from a certain community. The table below su
postnew [5]

Answer:

The mean is 28.3 or 28

I added it all and then divided it by how many different numbers there were.

3 0
3 years ago
Combine like terms to simplify the expression:<br> 1 + t + 3 − 5t + 5 = ______
lidiya [134]

Answer:

9-4t

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Simplify the expression.<br> PLEASE HELP ME
Hatshy [7]

Answer:

Step-by-step explanation:

\sqrt[3]{27x^{3}y^{6} z^{9} }\\=3^{3 *\frac{1}{3}} * x^{3*\frac{1}{3} }*y^{6*\frac{1}{3} }*z^{9*\frac{1}{3} }\\= 3xy^{2}z^{3}

hope it will help :)

8 0
3 years ago
Read 2 more answers
For the function given below, find a formula for the Riemann sum obtained by dividing the interval (0, 3) into n equal subinterv
Viktor [21]

Splitting up [0, 3] into n equally-spaced subintervals of length \Delta x=\frac{3-0}n = \frac3n gives the partition

\left[0, \dfrac3n\right] \cup \left[\dfrac3n, \dfrac6n\right] \cup \left[\dfrac6n, \dfrac9n\right] \cup \cdots \cup \left[\dfrac{3(n-1)}n, 3\right]

where the right endpoint of the i-th subinterval is given by the sequence

r_i = \dfrac{3i}n

for i\in\{1,2,3,\ldots,n\}.

Then the definite integral is given by the infinite Riemann sum

\displaystyle \int_0^3 2x^2 \, dx = \lim_{n\to\infty} \sum_{i=1}^n 2{r_i}^2 \Delta x \\\\ ~~~~~~~~ = \lim_{n\to\infty} \frac6n \sum_{i=1}^n \left(\frac{3i}n\right)^2 \\\\ ~~~~~~~~ = \lim_{n\to\infty} \frac{54}{n^3} \sum_{i=1}^n i^2 \\\\ ~~~~~~~~ = \lim_{n\to\infty} \frac{54}{n^3}\cdot\frac{n(n+1)(2n+1)}6 = \boxed{18}

8 0
2 years ago
Other questions:
  • Calculate the area of the figure below using the following information:
    6·2 answers
  • Expand. Your answer should be a polynomial in standard form. (-p^2+4p-3)(p^2+2)=(−p 2 +4p−3)(p 2 +2)=left parenthesis, minus, p,
    8·2 answers
  • (7x3 + 51x2 - 47x - 49) = (x + 8)
    8·1 answer
  • The scatter plot below shows one class of Spanish students' time spent studying for their final versus the grade that they earne
    13·2 answers
  • You have just determined the actual number of workstations that will be used on an assembly line to be 5 using the assembly-line
    15·1 answer
  • How big are soobins feet
    12·1 answer
  • The roof of a home rises vertically by 7 ft through a horizontal distance of 15 ft. Find the pitch (slope) of the roof.
    5·1 answer
  • Which of the following is the best graph of the point below
    7·1 answer
  • Two vertical posts stand side by side. One post is 8 feet tall while the other is 17 feet tall. If a 24 foot wire is stretched b
    5·2 answers
  • Oscar buys his lunch in the school cafeteria. The cost of 15 school lunches is $33.75.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!