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
elena55 [62]
2 years ago
9

Suppose you bought D DVD's and B Books. If each DVD cost $14.95 and each book you bought off the 'specials' table cost $6.95, wr

ite an expression that tells how much you spent. algebraic expressions
Mathematics
1 answer:
Doss [256]2 years ago
8 0

Answer:

14.95D + 6.95B

Step-by-step explanation:

Well a simple expression would make D the amount of DVD's you bought and B the amount of Books purchased.

In simple cases the prices don't change depending on that amount so you can multiply them by making it 14.95D and 6.95B.

Making the expression 14.95D + 6.95B.

You might be interested in
8/9 to what power equals 64/81
Ierofanga [76]

2nd

Step-by-step explanation:

8/9 to the second power equals to 64/81. Hope this helps!

7 0
3 years ago
Read 2 more answers
Which is the equation of a line that passes through the points (1,4) and (-1,1)
horsena [70]

Answer:

The equation of the line is y = 3/2x + 5/2

Step-by-step explanation:

To find the equation of this line, start by using the two points with the slope formula to find the slope.

m(slope) = (y2 - y1)/(x2 - x1)

m = (4 - 1)/(1 - -1)

m = 3/(1 + 1)

m = 3/2

Now that we have the slope, we can use that and either point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 4 = 3/2(x - 1)

y - 4 = 3/2x - 3/2

y = 3/2x + 5/2

3 0
2 years ago
A piece of wire of length L will be cut into two pieces, one piece to form a square and the other piece to form an equilateral t
inn [45]

Answer:

  (a)  square: L; triangle: 0.

  (b)  square: L·(-16+12√3)/11; triangle: L·(27-12√3)/11

Step-by-step explanation:

<u>Strategy</u>: First we will write each area in terms of its perimeter. Then we will find the total area in terms of the amount devoted to the square. Differentiating will give a way to find the minimum total area.

__

In terms of its perimeter p, the area of a square is ...

  A_square = p^2/16

In terms of its perimeter p, the area of an equilateral triangle is ...

  A_triangle = p^2/(12√3)

Then the total area of the two figures whose total perimeter is L with "x" devoted to the square is ...

  A_total = x^2/16 + (L-x)^2/(12√3)

__

(a) We know when polygons are regular, the one with the most area for the least perimeter is the one with the most sides. Hence, the total area is maximized when all of the wire is devoted to the square.

__

(b) The derivative of A_total with respect to x is ...

  dA/dx = x/8 -(L-x)/(6√3)

This will be zero when ...

  x/8 = (L-x)/(6√3)

  x(6√3) = 8L -8x

  x(8 +6√3) = 8L

  x = L·8/(6√3 +8) = 8L(6√3 -8)/(64-108)

  x = L·(12√3 -16)/11

The total area is minimized when L·(12√3 -16)/11 is devoted to the square, and the balance is devoted to the triangle.

5 0
3 years ago
What is the solution to this equation 4x + 2 ( x + 6 ) = 36
Margaret [11]

The answer is A. x=4.


Start off by distributing the parentheses into the equation.

4x+2(x+6)=36

4x+2x+12=26


Combine like terms.

4x+2x=6x

6x+12=36


Now solve the equation as normal. Begin by subtracting 12 from both sides to isolate the variable.

6x+12=36

-12 -12

---------------

6x = 24


Divide 6 on both sides to find x.

6x=24

---- -----

6 6

x=4


The solution to the equation is 4.

4 0
2 years ago
Read 2 more answers
HELP HELP HELP I NEED HELPPP can anyone answer this the question is on the picture it would help a lot please!!!
forsale [732]
It’s -1/2 (negative 1 over 2)
4 0
3 years ago
Other questions:
  • Two angles and the non-included side of one triangle are congruent to the corresponding parts of another triangle. Which congrue
    15·2 answers
  • Boris pays $3.84 for a bag of 16 tangerines.
    13·1 answer
  • NEED HELP TAKING A QUIZ HAVE NO IDEA WILL MAKE YOU BRAINLEST
    5·2 answers
  • You deposit $200 each year for 10 years into a sinking fund that pays 6% interest compounded annually. What is the future value
    6·1 answer
  • To support a local senior citizens center, a student club sent a flyer home to the n students in the school. The flyer said, "Pl
    11·1 answer
  • Please help! I need to tell whether x and y are in a proportional relationship and I need to write an equation that represents t
    9·2 answers
  • Please solve this question thank you
    12·1 answer
  • HELP I GIVE BRAINYEST The angle measurements in the diagram are represented by the following expressions.
    12·1 answer
  • Fourth Grade<br> Memory Jogger Week 5 I need helppppp
    11·1 answer
  • Show how you would convert 500 A.U. into light-years.<br><br> Someone please help I’m so lost
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!