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
CaHeK987 [17]
3 years ago
5

Given a school supply store sells pencils for $2, pens for $4, and markers for $5. Write an expression for the total cost of 3 p

encils, 2 pens, and 3 markers
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer: 29

Step-by-step explanation:

3x2= 6

4x2=8

3x5=15

6+8+15= 29

hoped I helped you a bit! Good luck! :)

You might be interested in
A professor went to a website for rating professors and looked up the quality rating and also the "easiness" of the six full-tim
Marat540 [252]

We are asked to determine the correlation factor "r" of the given table. To do that we will first label the column for "Quality" as "x" and the column for "Easiness" as "y". Like this:

Now, we create another column with the product of "x" and "y". Like this:

Now, we will add another column with the squares of the values of "x". Like this:

Now, we add another column with the squares of the values of "y":

Now, we sum the values on each of the columns:

Now, to get the correlation factor we use the following formula:

r=\frac{n\Sigma xy-\Sigma x\Sigma y}{\sqrt{(n\Sigma x^2-(\Sigma x)^2)(n\Sigma y^2-(\Sigma y)^2)}}

Where:

\begin{gathered} \Sigma xy=\text{ sum of the column of xy} \\ \Sigma x=\text{ sum of the column x} \\ \Sigma y=\text{ sum of the column y} \\ \Sigma x^2=\text{ sum of the column x\textasciicircum2} \\ \Sigma y^2=\text{ sum of the column y\textasciicircum2} \\ n=\text{ number of rows} \end{gathered}

Now we substitute the values, we get:

r=\frac{\left(6)(70.56)-(25.2)(16.4\right)}{\sqrt{((6)(107.12)-(25.2)^2)((6)(47.82)-(16.4)^2)}}

Solving the operations:

r=0.858

Therefore, the correlation factor is 0.858. If the correlation factor approaches the values of +1, this means that there is a strong linear correlation between the variables "x" and "y" and this correlation tends to be with a positive slope.

7 0
11 months ago
3. Today, Dahlia folded 29 paper cranes. Now there are 41 paper cranes in class. How many cranes were there in class yesterday?
ohaa [14]

Answer:

There were 12 cranes in class yesterday. For all the cranes, there were a total of 290 centimeters.

Step-by-step explanation:

41-29=12.

29*10=290

4 0
1 year ago
Another easy question need fast please
Tresset [83]

Answer:

30.25

Step-by-step explanation:

All angles of a line must add up to 180. Since we already know that one angle is 90 degrees, we know that the other angles should add up to 90 degrees in order for all of the angles to add up to 180 degrees:

(3x-7)+(x+8)=90

4x+1=90

4x=89

x=22.25

22.25+8= 30.25

3 0
2 years ago
Given F(x) = V(3x – 12) + 2, what is the range in set notation?
iogann1982 [59]

Answer:

(-∞,∞)

Step-by-step explanation:

6 0
3 years ago
A large pot holds 12 gallons of soup Jared has 1-pint containers of chicken broth. Complete the table to help you find the numbe
Rina8888 [55]
There is 8 pints in 1 gallon so 12x8=96
96 pints to fill a 12 gallon pot
7 0
2 years ago
Read 2 more answers
Other questions:
  • The grid shown below is in the shape of a rectangle. What is the area, in square units, of the shaded part of the rectangle? a 1
    5·1 answer
  • Mr. Thomas is making rice. One cup of rice requires 1/3 of a cup of water. He is making 2 1/2 cups of rice. How much water will
    5·1 answer
  • What is the exact volume of the cylinder?
    10·1 answer
  • In a thunderstorm, the wind velocity in meters per second can be described by the function v(p) = 5.7 √998 - p, where p is the a
    5·1 answer
  • What is the value of this expression when x=-1 and Y = 2?<br> 4x3y2
    15·2 answers
  • Find the unit rates: 8 ounces for $0.89? 32 ounces for $2.39?
    7·1 answer
  • (The question is in the photo)
    13·2 answers
  • At the bulk food store, Jerry bought 200 g of mixed nuts that cost $2.50. What is the cost of 1 g of nuts? show ur work
    13·1 answer
  • Plss help me:((((((((​
    7·1 answer
  • In rectangle LONG, LN = 40 and ON=24. Find LO.​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!