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Helga [31]
3 years ago
15

Kevin is a songwriter who collects royalties on his songs whenever they are played in a commercial or a movie. Kevin will earn $

50 every time one of his songs is played in a commercial and he will earn $150 every time one of his songs is played in a movie. Kevin's songs were played on 6 more commercials than movies, and his total earnings on the royalties from all commercials and movies was $900. Graphically solve a system of equations in order to determine the number of commercials, x,x, and the number of movies, y,y, on which Kevin's songs were played.
Mathematics
1 answer:
Svetlanka [38]3 years ago
6 0

Answer:

y=x - 6

y= -1/3x + 6

Step-by-step explanation:

There is your answer! Hope it helps! :]

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Help with math earn 10 points
Luda [366]

Answer:

The answer is 15 Shirts

Step-by-step explanation:

We want to know what x is going to equal that makes the equation the same.

First, I make the euations equal to each other by substituting the y -->

7x + 50 = 10x + 5

Then, I combine my similar terms --> 45 = 3x

After that, I divide by 3 to get x on its own --> \frac{45}{3} =\frac{3x}{3} --> 15 = x

This means that after 15 Shirts are sold, the costs for both companies are the same.

6 0
3 years ago
Read 2 more answers
A giant scoop, operated by a crane, is in the shape of a hemisphere of radius 21 inches. The scoop is used to transfer molten st
eduard

Answer:

31.5 in

Step-by-step explanation:

  • Volume of a hemisphere = (2/3)\pir³
    (where r is the radius)
  • Volume of a cylinder = \pir²h
    (where r is the radius and h is the height)
  • radius r = (1/2) diameter

First, find the volume of the scoop using the volume of a hemisphere formula with r = 21:

Volume = (2/3)\pi x 21³ = 6174\pi in³

Now equate the found volume of the scoop to the equation of the volume of a cylinder with r = 14, and solve for h:

                                            \pi14²h = 6174\pi

                                            196\pih = 6174\pi

 Divide both sides by \pi:        196h = 6174

Divide both sides by 196:          h = 31.5

Therefore, the height of the molten steel in the storage tank is 31.5 in

3 0
2 years ago
Which of the following is a quadratic equation that has the roots x = 2 and x = −7? (4 points)
crimeas [40]

Answer:

x^2 + 5x - 14

Step-by-step explanation:

We can assume that if there is 2 options for x, this is a quadratic equation that equals 0.

Therefore, we can put this into brackets as one bracket must equal 0.

(x - 2) (x + 7)

After this we expand, which is a process easier to search up

The answer is:

x^2 + 7x - 2x - 14

We can simplify this to:

x^2 + 5x - 14

x^2 represents x squared in case you were wondering

Therefore, the answer is:

x^2 + 5x - 14

8 0
2 years ago
Write an expression that has four terms. your expression should have three different variables and a constant
Katyanochek1 [597]
A term is a number or variable in a math sentence (such as an expression or equation). 

Example:

a + 2b + c + 5

5 is a constant; a,b, c are all variables.
4 0
3 years ago
Simplify your answer as much as possible. 3/x-4/7
Natasha2012 [34]

Answer:

That is ur answer. I was unable to type that so I use took a screenshooton my phone .

Step-by-step explanation:

5 0
3 years ago
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