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
Katena32 [7]
2 years ago
11

5) A book is sold at $152.50 and a discount of 9% is given for students.

Mathematics
1 answer:
Svet_ta [14]2 years ago
4 0

Answer:

$138.78

Step-by-step explanation:

152.50 decrease 9% =

152.50 × (1 - 9%) = 152.50 × (1 - 0.09) = 138.775

You might be interested in
Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25%, percent less than s
Semenov [28]

Answer:

14 km

Step-by-step explanation:

6 km in the afternoon

x km in the morning

6= x- 25%

6= 0.75x

x= 6/0.75

x= 8 km

total 6+8= 14 km

4 0
3 years ago
A ferry operator takes tourists to an island.
Oksanka [162]

The fare of $(20 - 2.5) = $17.5 will maximize the total fare.

<h3>What is Differentiation?</h3>

Differentiation means the rate of change of one quantity with respect to another. The speed is calculated as the rate of change of distance with respect to time.

Here, The operator for a round-trip fare of $20, carries an average of 500 people per day.

It is estimated that 20 fewer people will take the trip, for each $1 increase in fare.

for $x  increase in fare, 20x less people will take the trip and at that time the total fare F is given by  

f(x) =(20 + x)(500 - 20x)

f (x) = 10000 + 100x - 20x²

For f(x) to be maximum, the condition is dy/dx = 0

 100 - 40x = 0

⇒ x = 2.5  

Thus, the fare of $(20 - 2.5) = $17.5 will maximize the total fare.

Learn more about Differentiation from:

brainly.com/question/24062595

#SPJ1

3 0
1 year ago
Put the following equation in slope-intercept form: 2x+4y=12
guajiro [1.7K]
Y=-1/2x+3 is the slope intercept form.
4 0
3 years ago
When factoring an algebraic expression, what property are we "undoing"?
DerKrebs [107]

Answer:

The Distributive Property

4 0
3 years ago
Solve the system of equations. Show ALL your work. Put your answer in the form of an ordered pair (x, y)
stiv31 [10]
This should be easy because we just have to use substitution method. Substitute the value of x from the second equation into the x of the first equation. 
                         -4(2y) + 11y = 15
                         -8y + 11y = 15
                                   3y = 15   ; y = 5
Substitute this value of y to either the first or second equation.
                                        x = 2(5) = 10
The ordered pair is therefore (10,5).
6 0
3 years ago
Other questions:
  • What percent of 5 is 2?
    15·1 answer
  • 1/2,2/5,3/5,3/7 from least to greatest
    11·2 answers
  • Find the 30in term if the following sequence 1, 7, 13, 19
    8·1 answer
  • Diego is solving the inequality 100 − 3x ≥ -50. He solves the equation 100 − 3x = -50 and gets x = 50. What is the solution to t
    10·2 answers
  • 6th grade math , help me please :)
    5·1 answer
  • mei invests $4667 in a savings account with a fixed annual interest rate of 5% compounded 6 times per year. what will the accoun
    11·1 answer
  • Somebody help me please
    12·1 answer
  • A triangular prism. Rectangle A has a base of 14 meters and height of 8 meters. Rectangle B has a base of 14 meters and height o
    7·2 answers
  • 7 giờ bằng bao nhiêu giây?
    7·1 answer
  • The sum of ages of Nira before 10 years and after 10 years is 60.find her present age.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!