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
Vikki [24]
3 years ago
11

Chen paid $36 for some books after a 25% discount was applied. What was the original price of the books?

Mathematics
1 answer:
Goryan [66]3 years ago
4 0
The answer is $48 for the book
You might be interested in
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba
Ahat [919]

Answer:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

\hat p=\frac{21}{100}=0.21 estimated proportion of overfilled bags

p_o=0.15 is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:  

Null hypothesis:p =0.7  

Alternative hypothesis:p > 0.15  

The statistic for this case is:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And replacing the info given we got:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

5 0
3 years ago
The slope of a line is -5, and the y-intercept is at (0, 4). What is the equation of the line in the slope-intercept form?
Mamont248 [21]
I think the answer is B
4 0
3 years ago
WILL GIVE 5 STAR IF CORRECT: Chasity purchased a pool for $9,270 using a six-month deferred payment plan with an interest rate o
Verdich [7]

Answer:

$297.41

Step-by-step explanation:

Given that:

Amount = 9270

Derferred period = 6 months = 0.5 yr

Rate = 17.95% = 0.1795

Amount = 9270(1 + 0.1795)^0.5

Amount = 9270(1.1795)^0.5

Amount = 10067.663

PV = 10067.663

Number of months, n = 48

Monthly amount to be paid :

rp = rate per period = 0.1795/12 = 0.0149583

(rp * PV) / 1 - (1 + rp)^-n

(0.0149583 * 10067.663) / 1 - (1 + 0.0149583)^-48

150.5951234529 / 0.5096723

= 295.47441

Closest option is $297.41

6 0
3 years ago
If you know that two legs of a right triangle are 7 and 16 units long, what is the triangle's area? If necessary, round your ans
gizmo_the_mogwai [7]
The answer is always A
5 0
3 years ago
What is the 7th term in this fibonacci sequence <br>1, 1,2,3,5,8​
True [87]

Answer:

13

Step-by-step explanation:

To obtain a term in a Fibonacci sequence, add the previous 2 terms, thus

7 th term = 8 + 5 = 13

3 0
3 years ago
Read 2 more answers
Other questions:
  • Identify the inequality that corresponds to the graph below. Choose all that apply.
    13·1 answer
  • Solve the systems of equations using substitution<br><br> -3x+2y=12<br><br> x=2y-8
    15·2 answers
  • There are 3 students to 1 adult on a field trip.You need to find the number of adults needed for 24 students. What would the sec
    12·1 answer
  • Which points
    15·1 answer
  • Jaren estimated that she could run at a steady rate of 8km/h. She enters a marathon, a distance of 36 km. How long should it tak
    13·1 answer
  • The point (4, 12) is an ordered pair in a proportional relationship. What equation represents this relationship?
    7·1 answer
  • 331 students went on a field trip six buses were filled and seven students traveled in cars how many students were on each bus​
    15·1 answer
  • the graph shows the proportion of red and blue food coloring ,that taylor mixes to make purple ,what is the slope of the line ?t
    14·1 answer
  • Study this incomplete image of a geometric construction. This image may result from the construction of ____
    5·2 answers
  • Square FGNM and its diagonals are shown below. Which pairs of line segments are parallel? Select all that apply.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!