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
rosijanka [135]
3 years ago
11

The cost of textbooks for a school increases with the average class size. Identify the independent and dependent quantity in the

situation
Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0

Answer: Independent quantity = Class size

Dependent quantity = Cost of textbooks

Step-by-step explanation:

  • The quantity that can be changed and manipulated is known as the independent quantity .
  • The dependent variable is quantity which depends on the independe nt quantity.

The given statement :-The cost of textbooks for a school increases with the average class size.

From the given statement , it is clear that the cost of textbooks is dependent  on the class size.

Hence, Independent quantity = Class size

Dependent quantity = Cost of textbooks

Pani-rosa [81]3 years ago
7 0
Cost depends on the class size  , so 
cost is the dependent variable and class size is the independent.
You might be interested in
An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 3ft long with a diameter of 2.2 ft . S
Contact [7]

4 minutes 34 seconds will takes to empty the tank, if the starts completely full and oil drained at a rate of 2.5 ft^{3} per minute.

Step-by-step explanation:

              The given is,

                         Tank is shaped like a cylinder that is 3 ft long with a diameter of 2.2 ft.

                          Oil drained at a rate of 2.5 ft^{3} per minute.

Step:1

       Time taken to dry the oil tank is,

                           T   = \frac{Volume of oil}{Oil drain rate}  ....................................(1)

Step:2

      Volume of the oil is,

                           V = \pi  r^{2} h.................................................(2)

      Where, r - Radius of Cylinder

                             r = \frac{d}{2}

                             r = \frac{2.2}{2}

                             r = 1.1 ft

      From eqn (1),

                        V =  \pi × 1.1^{2} × 3

                           = 11.40398 ft^{3}

Step:3

     From equation (1)

                           = \frac{11.40398}{2.5}

                           = 4.56

                           = 4.56 minutes

                      T  = 4 minutes 34 seconds

Result:

      Time taken to dry the oil tank is 4 minutes 34 seconds, if a cylinder is 3 ft long with a diameter of 2.2 ft and oil is drained at a rate of 2.5ft^3 per minute.

4 0
3 years ago
What are the values of x and y if you answer is not a whole number write it as a decimal and round if neccasasry
den301095 [7]

a) 3x + 5y =  26  

b) 2x + 2y = 12

First, we need to find a way to equate either the x terms or the y terms in each equation. a)  6x + 10y = 52

                          b) 6x + 6y = 36

Then take equation b) from the equation a) to eliminate the x component.

a) 6x + 10y = 52

- b) 6x + 6y = 36

   0x    + 4y = 16

            y = 4 ?

Then substitute the value of y into either equation to find the value of x.

b) 2x + 2y = 12

   2x + (2x4) =12

   2x + 8 = 12

   2x = 4

   x = 2

I hope this new information i read helps you maybe understand it and as an example!

5 0
3 years ago
Let y=r(x) be continuous and differentiable. Assume r'(x)=0 r′(x)=0 at x=ax=a.
Basile [38]

Answer:

am in callege i need points really much

Step-by-step explanation:

6 0
3 years ago
Cumpute:<br><br> 11squared-(12-4)squared + 3 =
VikaD [51]

Answer:

The result is 60

Step-by-step explanation:

We have to use this expression showing BODMAS rule. According to the rule, we must first solve the brackets. In our expression, the term within the bracket is (12-4) squared = (8) squared = 64.

Then we need to perform the addition followed by subtraction.

The expression becomes:

11 squared - 64 + 3

= 121 - 64 + 3

= 124 - 64

= 60

So, the result of the expression is 60.

5 0
3 years ago
All three sides of a triangle are initially 5.0 long. One of the triangle's sides is oriented horizontally. The triangle is scal
zlopas [31]

Answer:

h = 3.62

Step-by-step explanation:

First, as both triangles have the same angles we can use the relationship of areas and sides corresponding to similar triangles as follows:

relation\ between\ areas=( relation\ between\ sides)^2\\\frac{0.7A}{A}=(\frac{s}{5})^2\\s= 5\sqrt0.7= 4.18

Now we know that the new triangle has sides of 4.18. Then, as these triangles are equilateral we can use the Pythagorean Theorem to find the height:

4.18^2=h^2+(\frac{4.18}{2})^2\\h=\sqrt (4.18^2-2.09^2)=3.62 m\\h= 3.62

Finally the height of this new triangle is 3.62 cm

6 0
3 years ago
Other questions:
  • You are graphing rectangle A, B, C, and D in the coordinate plane. The following are three of the vertices of the rectangle: A(-
    10·1 answer
  • What does the point (2,24) represent?
    6·1 answer
  • how to find the area of two-dimensional and three-dimensional shapes? Please put small words so I will understand it ty :]
    9·1 answer
  • Write 3,680,225 in expanded form​
    12·1 answer
  • Is it possible to find the exact decimal value for square root of 50
    5·1 answer
  • Graph the solution of the inequality -3 &lt; 2x – 7 &lt; 5 on the number line.
    6·1 answer
  • If 1/3 of a set of numbers is 8 how many numbers are in the total set ?
    7·1 answer
  • Solve for x help plz
    13·1 answer
  • 1.5 x 10 to the power of 11
    13·2 answers
  • I'm horrible at this so can I please get help, the rest says "solve for a. a=
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!