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
Katyanochek1 [597]
3 years ago
15

Sally bought five books.Their mean price was 3.25. The total cost for four books was 11.75.what was the cost of the fifth book​

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

$4.50

Step-by-step explanation:

Use the mean formula: mean = sum of elements / number of elements

Let x represent the cost of the fifth book, and solve for x:

mean = sum of elements / number of elements

3.25 = (11.75 + x) / 5

16.25 = 11.75 + x

4.5 = x

So, the cost of the fifth book was $4.50

You might be interested in
Multiplying 5 and 3 does NOT tell you the total number of flash cards in the 5 piles. Which is the reason why?
erica [24]
5 * 3 does not tell you the total number of flash cards in 5 piles because you don't know how many cards are in each pile.

Mark me Brainliest pls!!!! It will help me rank up!

7 0
4 years ago
A triangle has sides of 4 and 6. What is a possible length of the third side?
svp [43]

Answer:

7.2

Step-by-step explanation:

Do 6^2 = 36

Do 4^2 = 16

Add them which equal 52

Square root of 52 is 7.2 to 1 decimal Place this is a possible length

3 0
4 years ago
Read 2 more answers
Calculate the pay for the following day of a weekly time card given a wage $13/hr <br> HELP PLEASE
dlinn [17]

Answer:

$130

Step-by-step explanation:

The person gets $13 and hour and works for 10 hours 15 minutes. You round down to 10 hours and 10x13=130.

Hope this helps.

4 0
3 years ago
Suppose you are going to the Detroit institute of arts. You have a maximum of $20" to spend on food. If there are 16 students on
AURORKA [14]
$20 divided by 16 students is $1.25 per student. (20/16=1.25)

Hope that helps.
3 0
4 years ago
Read 2 more answers
The table shown below represents a function. Which of the following values could not be used to complete the table?
11111nata11111 [884]

Answer:

The answer to your question is: letter B

Step-by-step explanation:

Function definition: a function is a relation from a set of inputs to a set of outputs.

The most important about functions is that each input is related to one and only one output. Then there are not repeated values of inputs.

In the exercise, the inputs are -10, -25, -5, and the outputs are 5, 10, 15 and 20.

So, to solve this exercise, look for a number in the options that will not be repeated in the inputs,

Then,  

          - 20 is a possible option because is not repeated

           -5    is not an option to complete the table because 5 already exist.

          - 15 is a possible option because is not repeated previously.

3 0
3 years ago
Other questions:
  • Solve the following problem.<br><br> How much is 1/9 of 3/8
    5·1 answer
  • What is the vertex of y=|x-2|+3
    10·1 answer
  • What is the answer for 3/7 plus 1/2
    11·1 answer
  • Which expressions are equivalent to<br>-6 +49 + (-69) ?​
    13·1 answer
  • Select all the statements about functions g(x) = x2 − 4x + 3 and f(x) = x2 − 4x that are true. A. The vertex of the graph of fun
    10·2 answers
  • Solve for x please thanks
    9·1 answer
  • A history teacher is writing a test worth 100 points. She uses multiple-choice questions worth 6 points
    6·1 answer
  • Please help!<br> Stay safe and take care!
    13·1 answer
  • What is the approximate area, in square feet, of the figure shown?
    15·1 answer
  • Writing to Learn x- and y-intercepts
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!