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2 years ago

I am honestly the worst at geometry and this is my last proof for my class could someone help me, I don't wanna fail this proof.

Mathematics

1 answer:

Phantasy [73]2 years ago

5 0

Why cant you ask your teacher thats what they are for

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A video store specializes in three types of movies: children's, American West, and horror. It's known that:

xenn [34]

X, y, z denote children's movies, western movies, and horror movies, respectively. The related system of equations is formed and solved.

$\left\{\begin{matrix} \qquad\qquad\ \dfrac{60}{100}x + \dfrac{50}{100}y =\dfrac{30}{100}(x+y+z)\\ \dfrac{20}{100}x+ \dfrac{60}{100}y+ \dfrac{60}{100}z= \dfrac{1}{2}(x+y+z) \\ \ \ \ x+100=y \end{matrix} \right.\$

Simplifying the system of equations, we have

$\left\{\begin{matrix} 3x + 2y -3z=0\\ -3x+ y+ z= 0 \\ \ \ \ x+100=y \end{matrix} \right.\ \ \Longrightarrow \ \left\{\begin{matrix} 5x-3z=-200\\ -2x+ z= -100 \end{matrix} \right.\$

$\ \ \ 5x-3z=-200\\\underline{-6x+3z=-300} \ \Rightarrow \ x=500\\\ \ -x+0= \ 500$

$y&=500+100=600\\ z&=3(500)-600=900$

The video store has 500 children's movies, 600 westerns and 900 horror movies.

6 0

2 years ago

The city mayor wants to use the reserved section of a rectangular park for gardening lessons conducted by the city public school

nekit [7.7K]

Area of a Lawn = 14*16 + 1/2*8*14

A = 224 + 56

A = 280 Ft²

In short, Your Answer would be: Option C

Hope this helps!

6 0

3 years ago

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Am i correct ?? for a brainly and pls explain

Paladinen [302]

Answer:

Yes.

Step-by-step explanation:

Because

6*4 =24

and 4*0 = 0,

24+0=24

have a nice day!!!

7 0

2 years ago

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What is the y and x intercept and I need to show work

LiRa [457]

Answer:

x=0

y=-14

Step-by-step explanation:

If the equation is y=2x-14,

If x=0,

enter x into the equation

y=2(0)-14

y=0-14

y=-14

6 0

2 years ago

Make a table of values for the following equation:

loris [4]

*Not 100% sure what you want but here goes*

Step-by-step explanation:

So what you do is create a table for this example label the x values say -2 through 2. Then you plug in the x value to the equation so for 2 its y= 2(2)+5 which is 9. Continue this for the rest of the graph and that should do it.

Hope this helps

3 0

2 years ago

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