Answer:
c
Step-by-step explanation:
i think not 100 percent sure
Answer:
![13x=39](https://tex.z-dn.net/?f=13x%3D39)
Step-by-step explanation:
Given
![2x - y = -4 \to 10x - 5y =-20](https://tex.z-dn.net/?f=2x%20-%20y%20%3D%20-4%20%5Cto%2010x%20-%205y%20%3D-20)
![3x +5y =59 \to 3x +5y = 59](https://tex.z-dn.net/?f=3x%20%2B5y%20%3D59%20%5Cto%203x%20%2B5y%20%3D%2059)
Required
What can replace
?
We have:
![10x - 5y =-20](https://tex.z-dn.net/?f=10x%20-%205y%20%3D-20)
and
![3x +5y = 59](https://tex.z-dn.net/?f=3x%20%2B5y%20%3D%2059)
Add up both equations:
![10x +3x-5y+5y=-20+59](https://tex.z-dn.net/?f=10x%20%2B3x-5y%2B5y%3D-20%2B59)
![10x +3x=39](https://tex.z-dn.net/?f=10x%20%2B3x%3D39)
![13x=39](https://tex.z-dn.net/?f=13x%3D39)
<em>Since </em>
<em> is a result of </em>
<em> and </em>
<em>,</em>
<em></em>
<em> can replace </em>
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The sales tax was 86.25 because when working with percent the way you convert percents to decimals is placing it 2 places behind a decimal point for example 7.5% goes into 0.075 then you take that 0.075 then multiply your decimal with 1150 so the sales tax is 86.25
Answer:
-5 through 10
Step-by-step explanation:
Answer:
I really recomend the site called desmos graphing calculator. im currently doing my own work or I would do this for you. but this site is amazing so check it out. all you gotta do is plug it in!