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
defon
3 years ago
10

Shirley buys fiction books for $20 each, and then marks up by 25% to

Mathematics
1 answer:
Katarina [22]3 years ago
7 0

Answer:

$5

Step-by-step explanation:

Find the markup by finding 25% of 20:

20(0.25)

= 5

So, the markup is $5

You might be interested in
The fox population in a certain region has a relative growth rate of 4% per year. It is estimated that the population in year 20
den301095 [7]

Answer:

a) P(t) = 17900e^{0.04t}

b) The population estimated in 2008 is of 24651.

Step-by-step explanation:

The population growth model may be given by the following exponential function:

P(t) = P_{0}e^{rt}

In which P(t) is the population after t years, P_{0} is the initial population and r is the growth rate.

(A.) Find a function that models the population t years after 2000 (t=0 for 2000)

We have that:

P_{0} = 17900, r = 0.04. So

P(t) = P_{0}e^{rt}

P(t) = 17900e^{0.04t}

(B.) Use the function from part A to estimate the fox population in the year 2008.

2008 is 8 years after 2000. So:

P(8) = 17900e^{0.04*8} = 24650.5

The population estimated in 2008 is of 24651.

3 0
3 years ago
Anita and Joelle bowl together and their combined total score for one game was 425 points. Anita’s score was 40 less than twice
Molodets [167]
OPTION A IS YOUR ANSWER........
6 0
3 years ago
Can somebody help me with 3 and 4? Will mark brainliest!
Ilia_Sergeevich [38]

Answer:

8960000

Step-by-step explanation:

8.96 times 10,10,10,10,10 joules

3 0
4 years ago
Find the value of p and q
Ira Lisetskai [31]

Answer:

The answer to your question is p =  27.7      q = 29

Step-by-step explanation:

Process

1.- Calculate the value of all the angles of the triangle

The angle of 50° and the one to the right are supplementary

                                   x + 50 = 180

                                   x = 130°

- The sum of the internal angles in a triangle equals 180°

                     30° + y + 130° = 180

                              y = 180 - 130 - 30

                              y = 180 - 160

                              y = 20°

- The angle of the right triangle

                     50 + 90 + z = 180

                              z = 180 - 90 - 50

                              z = 40°

If sum up the superior angles 20 + 40 = 60°, then the biggest triangle is a 30-60-90

2.- Calculate q using the trigonometric function tangent

                        tan Ф = q / 55

solve for q

                        q = 55 tan 30

                         q = 28.9 ≈ 29

3.-  Calculate the hypotenuse of the biggest triangle

                       h² = 55² + 29²

                       h² = 3866

                       h = 62,12

4.- Use law of sines to find p

                     \frac{p}{sin 20} = \frac{62.12}{sin 130}

solve for p

                       p = \frac{62.12 sin 20}{sin 130}

                       p = 27.74                        

5 0
4 years ago
Read 2 more answers
Which shows how -2.65 can be written as the ratio of two integers
Ksju [112]

-265 / 100 = -2.65

simplifying a little

-53/20 = -2.65

8 0
3 years ago
Other questions:
  • A spherical raindrop evaporates at a rate proportional to its surface area with (positive) constant of proportionality k ; i.E.
    8·1 answer
  • What is the value of x?<br><br> Enter your answer in the box.<br><br> x = ? in
    13·1 answer
  • If two tangents of ☉X meet at the external point Z, find x.
    13·1 answer
  • I NEED HELP ON THIS PROBLEM
    5·2 answers
  • Use the substitution method to solve the system of equations. Choose the
    12·2 answers
  • 2:3 and 4:6 wether the following ratios are proportional
    6·2 answers
  • Write an equation in point-slope form for each line.<br> (If possible please show work)
    9·1 answer
  • Beth filled 48 jars with paint. If each jar holds 1 pint of paint, how many gallons of paint did Beth use?
    6·1 answer
  • Five whole numbers are written in order
    11·1 answer
  • PLEASE ANSWER QUICK AND SHOW WORK
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!