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
alisha [4.7K]
3 years ago
15

At the book store, you purchased some $3 clearance mystery books and $8

Mathematics
1 answer:
nasty-shy [4]3 years ago
3 0

Answer:

15 of $3 books and 4 of the $8 books

Step-by-step explanation:

15×3= 45

8 × 4= 34

45+32= 77

You might be interested in
Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12
BARSIC [14]

We are told that Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12, 11, 12, 12, and 13. Christina wants to describe the players’ ages in an article for the school newspaper.

Since we know that range of a data is difference between the highest and lowest values of a data set. Range of our data set will be 4 (14-10). A group of different ages could have same range as Christina's data set. So range will be not a good option.

A measure of central tendencies will be better option to represent information about ages of softball team players. Mean will give the average age of softball players.

\text{Mean age of players}=\frac{10+11+11+12+12+12+12+12+13+13+13+14}{12}

\text{Mean age of players}=\frac{145}{12}=12.0833

Let us find median of data.

10,11,11,12,12,12,12,12,13,13,13,14        

\text{Median age of softball players}=\frac{12+12}{2}

\text{Median age of softball players}=\frac{24}{2}=12

We can see that average of our data is 12 years.    

Therefore, a measure of central tendency will be better choice to describe ages of softball players.      

7 0
3 years ago
4x - 5y = 15<br> find the slope and y-intercept
Mazyrski [523]

Answer:

slope=4/5

y-intercept = -3

Step-by-step explanation:

first we need to rewrite the expression to

y=mx+b

were b is the y-intercept and m the slope

4x-5y=15\\\\4x-5y+5y=15+5y\\\\4x+0=15+5y\\\\4x=5(3)+5(y)\\\\4x=5(3+y)\\\\\frac{1}{5}*4x= \frac{1}{5}*5(3+y) \\\\\frac{4x}{5}=3+y\\\\\frac{4x}{5} -3=3+y-3\\\\\frac{4x}{5} -3=y+0\\\\y=\frac{4x}{5} -3\\\\y=\frac{4}{5}x-3

so there we have it

m=\frac{4}{5} \\\\b=-3

6 0
3 years ago
If 2 inches on a map represents 100 miles, how much does 3.5 inches
Sidana [21]

Answer:

175 miles

Step-by-step explanation:

3.5 has 2 miles in it so it has 100 then it has another 1 to make It 3 and half of 2 is ahh it's hard to explain but there's the anwser

4 0
3 years ago
If y varies directly with x, and y is 12 when x is 8, find y when x is 9.​
jasenka [17]

Answer:

26

Step-by-step explanation:

its not

5 0
2 years ago
Help me please ............
olchik [2.2K]
The answer is Choice C: 51 
I Hoped I helped you! (^w^)/ 
6 0
3 years ago
Other questions:
  • Jenny pays $853 per month for her car payment. How much does she pay per year?
    5·1 answer
  • Please help which property is illustrated by this example (3 . 2) . 6 = 3 . (2 . 6)
    11·1 answer
  • What ratio is equivalent to 24: 28
    13·1 answer
  • What is the sum of the polynomials?<br>11x2-5<br>+ x+4​
    14·1 answer
  • Which statement about the graphs of f(x)=4x+2 and g(x)=8x+4 is correct?
    15·2 answers
  • What is the area of a rectangle with length 12 meters and width 6 meters? 0.5 m² 2 m² 36 m² 72 m²
    5·1 answer
  • Which phrase is the best description of the association between variables X and Y?
    6·1 answer
  • In a math class with 24 students, a test was given the same day that an assignment
    15·1 answer
  • If a and B are angles which tan a= 3/4 and cos B= 8/17. Determine the exact value of cos(a-B)
    11·1 answer
  • Andrew is half his brother's age. Three years ago, the sum of their ages was 24. How old are they each now? Please answer Fast.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!