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
yawa3891 [41]
3 years ago
12

A bookstore sells books at 25% profit calculate the percentage of sales price to cost price ?

Mathematics
1 answer:
g100num [7]3 years ago
3 0

Answer:

Cost price=100%

Step-by-step explanation:

You might be interested in
if a plane leave the ski resort every hour. the first plane leaves at 10 and the second plane leaves at 4 how man planes leave e
Butoxors [25]
Asked and answered elsewhere.
brainly.com/question/9934382
7 0
3 years ago
Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. after 3 hours, only 40 mg remain. find an exponential m
Anastaziya [24]
The equation will be of the form:
A(t)= A_{0} e^{rt}
where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:
40=320e^{3r}
Rearranging and taking natural logs of both sides, we get:
ln\ 0.125=3r
r=\frac{ln\ 0.125}{3}=-0.693
The required model is:
A=A _{0} e^{-0.693t}
3 0
3 years ago
What is the value of n in the diagram below?
IRINA_888 [86]

Answer:

n = 24

Step-by-step explanation:

(n + 18) and 2n are "complementary angles:"  they add up to 90°.

Thus, n + 18 + 2n = 90.  Combining the n terms results in 3n + 18 = 90.

Then 3n = 72.  Dividing both sides by 3 results in n = 24.

n is 24, so n + 18 is 42 and 2n is 48.  Note that 42 and 48 add up to 90.

5 0
3 years ago
The first three steps in determining the solution set of the system of equations, y = –x2 – 2x + 8 and y = 2x + 11, algebraicall
shutvik [7]
First step
Using substitution you can fill 2x + 11 in for the y part of the first equation
This will look like: 2x + 11 = -x^2 -2x + 8

Second step
Now we need to solve for the variable by combining like terms you can start by adding x^2 + 2x -8 to both sides
You get 0 = x^2 +4x +3

Third step
Factor
(X+3)(x+1)=0

If you need the y values you can fill in x= -3 to the second equation y= 2(-3) + 11 and y=5
First point is (-3,5)

The other point is found by filling x=-1 into the second equation: y= 2(-1) +11 and y = 9
Second point is (-1,9)
5 0
3 years ago
Please help w/ this question <br><br> image attached
vladimir2022 [97]

I think it’s 180 sorry if it’s wrong
5 0
3 years ago
Other questions:
  • Triangle X Y Z is shown. Angle X Z Y is a right angle. The length of Z X is b, the length of Z Y is a, and the length of hypoten
    12·2 answers
  • pls help !! A line passes through the point (0,-4) and has a slope of 3/2. What is the equation of the line ??
    12·2 answers
  • Need help ASAP!!!!!!!!
    5·1 answer
  • Simplify the expression 14+8x2
    6·1 answer
  • Need help with this I really don’t get it
    7·1 answer
  • An ice cream shoppe makes $15 for every 4 milkshakes they sell. If they made $71.25 and one hour on milkshakes how many did they
    9·2 answers
  • Solve for X <br><br>can you show me how to do this problem.​
    5·2 answers
  • The solution set for x^2 -x -56=0 is<br> A.{7,8}<br> b. {-7}<br> c. {8}<br> d. {-7,8}<br> e. {7.-8}
    9·1 answer
  • 「路學參
    5·1 answer
  • How to solve this problem for my algebra class
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!