Answer:
1) True
2) True
3) False
4) True
5) True
Step-by-step explanation:
1) -2《3 - 3
-2《0
-2》-3 - 2
-2》-5
2) 4 > -3 + 3
4 > 0
4 > 1 + 2
4 > 3
3) -2《0 - 6
-2《-6 is false
4) 0 - 3 < 4
-3 < 4
0 + 3 > -1
3 > -1
5) 0 > -6 - 3
0 > -9
0 < 3 + 6
0 < 9
Take the 4 thru the parentheses for -12y+8x then group like terms for -12y-6y=-18y 2x+8x=10x to give you a new expression of 10x-18y
-8(1 + 8n) - 8(6 - 4n) = -24
-8 - 64n - 48 + 32n = -24
-32n - 56 = -24
-32n = 32
n = -1
The answer is 1 because that's the point on the graph where x meets 0, or (0, 1)
To set up your system of equations is to have 2 equations. They both would have 1 similar variable. For example, Jenny is 5 more her brother's age. She is also 2 more than twice her brother's age. You would set this up as Y, which is Jenny, and X, her brother. Y = 5 + x and Y = 2x + 2. Make sure you put Y in the same spot in both equations. Then take the other half of the equations and simplify them. 5 + x = 2x + 2. Subtract x from both sides to get 5 = x + 2. Subtract 2 from both sides to get 3 = x. Now replace the X from both equations to get Y = 5+3, and Y = 2(3) + 2. You will see both add up to 8, which is how old Jenny is in this example. Hope this helped!
