A scale drawing of a movie screen is 21 inches long and 9 inches tall.
2 answers:
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Answer:
x = 4
y = -3
Step-by-step explanation:
We can use substitution, elimination, or graphically.
Step 1: Rearrange first equation
2x + 4y = -4
2x = -4 - 4y
x = -2 - 2y
Step 2: Rewrite systems of equations
x = -2 - 2y
3x + 5y = -3
Step 3: Substitution
3(-2 - 2y) + 5y = -3
-6 - 6y + 5y = -3
-6 - y = -3
-y = 3
y = -3
Step 4: Find <em>x</em> using <em>y</em>
2x + 4(-3) = -4
2x - 12 = -4
2x = 8
x = 4
Graphically:
Use a graphing calc and analyze where the 2 lines intersect.
Area of each piece of paper is 
Greatest number of possible piece of paper is![[1000\div\frac{187}{2}]=[1000\times\frac{2}{187}]=[\frac{2000}{187}]=10](https://tex.z-dn.net/?f=%5B1000%5Cdiv%5Cfrac%7B187%7D%7B2%7D%5D%3D%5B1000%5Ctimes%5Cfrac%7B2%7D%7B187%7D%5D%3D%5B%5Cfrac%7B2000%7D%7B187%7D%5D%3D10)
Greatest number of possible piece of paper is