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
horsena [70]
3 years ago
15

An appliance dealer sold 40 tv sets during a special sale. Some of the sets were black-and - white models each selling at $119.

The rest were color sets at $319 each. The sale brought in $10,360. How many color sets were sold?
Mathematics
1 answer:
Harman [31]3 years ago
8 0

Answer: 28 color sets were sold

Step-by-step explanation:

Let x represent the number of black-and - white models that were sold.

Let y represent the number of color sets that were sold.

An appliance dealer sold 40 tv sets during a special sale. Some of the sets were black-and - white models while the rest were color sets.. It means that

x + y = 40

Black-and - white models each sold for $119. Color sets sold at $319each. The sale brought in $10,360. It means that

119x + 319y = 10360 - - - - - -- - - - - -1

Substituting x = 40 - y into equation 1, it becomes

119(40 - y) + 319y = 10360

4760 - 119y + 319y = 10360

- 119y + 319y = 10360 - 4760

200y = 5600

y = 5600/200

y = 28

You might be interested in
Sorry I need it asap in I will give 5 stars to all the answers
Fantom [35]

Answer:

A. the equality means that the two equations should be equal in a certain x value. Solving the x for these equation gives you the x point where the 2 equations intersect.

B. The x value where the funcionts intersect is x = 1

Step-by-step explanation:

You can solve the x value using natural logarithms.

If you make a table for the two functions you will also see the result:

Value             y = 8^x            y = 2^(x+2)

 -3                    0,00195          0,5

 -2                    0,0156             1

 -1                     0,125               2

  0                     1                      4

  1                      8                     8

  2                      64                  16

  3                      512                  32

8 0
2 years ago
A factory makes 3,000 plastic forks per hour. How many plastic forks will the factory make in 6 hours?
yulyashka [42]

Answer:

18,000 forks

Step-by-step explanation:

They are making 3,000 forks each hour for 6 hours, so you would multiply 3,000 by 6. 3,000 multiplied by 6 is 18,000.

7 0
2 years ago
Read 2 more answers
Rewrite each pair of fractions using the least common denominator 5/6 2/5
Ivanshal [37]

Answer:

25/30 and 12/30

Step-by-step explanation:

6 and 5 have a least common multiple of 30

6*5 = 30

5/6 * 5/5 = 25/30

2/5 *6/6 = 12/30

5 0
3 years ago
Read 2 more answers
A right triangular prism is shown. A right triangular prism is shown. The right triangles have sides with lengths 15 and 8. The
Strike441 [17]

Answer:

900 cubic units

Step-by-step explanation:

V= base area *height of prism

Area of base is 1/2*15*8 =60

V=60*15

V=900

3 0
3 years ago
Read 2 more answers
Solve the following equations;-<br><br> x - 9 /√x + 3 =1
fgiga [73]

Answer:

13 , 6.

Step-by-step explanation:

A equation is given to us and we need to find out the value of x . The given equation to us is ,

\sf\implies \dfrac{ x -9}{\sqrt{x+3}}= 1

Cross multiply ,

\sf\implies x - 9 =\sqrt{ x +3}

Squaring both sides ,

\sf\implies (x - 9)^2 = x + 3

Simplify the whole square ,

\sf\implies x^2+9^2-2.9.x = x +3 \\

\sf\implies x^2+81 - 18x = x -3

Add 3 and subtract x on both sides ,

\sf\implies x^2 -18x-x +81-3=0

Simplify ,

\sf\implies x^2 -19x +78=0

Split the middle term of the quadratic equation,

\sf\implies x^2-13x-6x+78=0

Take out common ,

\sf\implies x( x -13)-6(x-13)=0

Take out ( x -13 ) as common ,

\sf\implies ( x -13)(x-6)=0

Equate both factors to 0 ,

\sf\implies \boxed{\pink{\sf x = 13,6}}

<u>Hence</u><u> the</u><u> </u><u>value</u><u> of</u><u> </u><u>x</u><u> is</u><u> </u><u>1</u><u>3</u><u> </u><u>or </u><u>6</u><u> </u><u>.</u>

7 0
2 years ago
Other questions:
  • 7(2x-5)-11=3(5x-2)-2x
    8·1 answer
  • CAN YOU PLZ HELP ME W/ HW!!!
    6·1 answer
  • Determine if the two triangles are congruent
    11·1 answer
  • Z=xm/y , solve for y
    7·1 answer
  • Colin knows 10 Vocabulary terms. Everyday he wants to learn three new Words. explain the y-intercept in context to the scenario
    10·1 answer
  • Solve for d.<br> d^3 + 27 = 0<br> Write your answers in simplified, rationalized form.
    8·2 answers
  • Solve the equation for x.
    9·1 answer
  • I need some help with this
    6·1 answer
  • What is the biconditional statement of the following conditional statement?
    7·1 answer
  • Find the length of side x in simplest radical form with a rational denominator.60°130°X
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!