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Korolek [52]
3 years ago
10

Question 4 Unsaved The price of a movie ticket is $8 for an adult and $5 for a child. The following equation represents the tota

l cost, c, of buying x number of adult tickets and y number of child tickets. c=8x+5y Which equation can be used to find the number of child tickets purchased if you know the total cost and the number of adult tickets purchased? Question 4 options: y=c−8x5 y=c+8x5 y=5c−8x y=c−40x
Mathematics
1 answer:
FrozenT [24]3 years ago
5 0

The equation c=8x+5y represents the total cost, c, of buying x number of adult tickets and y number of child tickets.

Express 5y:

5y=c-8x.

Now divide this equation by 5:

y=\dfrac{c-8x}{5}.

Answer: correct choice is A

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MA_775_DIABLO [31]

Answer:   A^{-1}=\left[\begin{array}{cc}\frac{3}{2}&-\frac{1}{2}\\-2&1\end{array}\right]

<u>Step-by-step explanation:</u>

                  \left[\begin{array}{cc}2&1\\4&3\end{array}\right]=\left[\begin{array}{cc}1&0\\0&1\end{array}\right]

\dfrac{1}{2}Row\ 1\rightarrow\left[\begin{array}{cc}1&\frac{1}{2}\\4&3\end{array}\right]=\left[\begin{array}{cc}\frac{1}{2}&0\\0&1\end{array}\right]

Row\ 2 -4 \ Row\ 1\rightarrow \left[\begin{array}{cc}1&\frac{1}{2}\\0&1\end{array}\right]=\left[\begin{array}{cc}\frac{1}{2}&0\\-2&1\end{array}\right]

Row\ 1-\dfrac{1}{2}\ Row\ 2 \rightarrow \left[\begin{array}{cc}1&0\\0&1\end{array}\right]=\left[\begin{array}{cc}\frac{3}{2}&-\frac{1}{2}\\-2&1\end{array}\right]

5 0
3 years ago
Tina noticed that she had taken notes on 25 pages of her notebook. 95 pages were still blank. Write and solve a subtraction equa
castortr0y [4]
25+95=120 25(notes on)=95(no notes on)=120 total
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3 years ago
What is the answer to this question 108= ​
alex41 [277]
Umm what’s the question??
6 0
3 years ago
Can someone please help me????? Please I'm not good with Geometry
Otrada [13]

The hurdle and runner form a right triangle (see attached picture) such that

sin(30°) = <em>h</em> / (5 ft)

and

cos(30°) = <em>x</em> / (5 ft)

where <em>h</em> is the height of the hurdle and <em>x</em> is the horizontal distance from where the runner jumps to the hurdle. So

<em>h</em> = (5 ft) sin(30°) = 5/2 ft = 2.5 ft

<em>x</em> = (5 ft) cos(30°) = (5√3)/2 ft ≈ 4.33 ft

6 0
3 years ago
The sum of 4 twelves and 7 sixteens
dolphi86 [110]

Answer: 160

Step-by-step explanation:

So here they are telling you that there are 4 twelves, a.k.a 4 groups of 12. Which means that you have to multiply 4 x 12 = 48

Then there are 7 sixteens, a.k.a 7 groups of 16.

Which also means that you have to multiply 7 x 16 = 112

Add both numbers and there you have your answer!

I hope you found my answer helpful! :)

8 0
3 years ago
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