1.Is the equation true false or open ?
9p+8=10p+7
A. Open; there is a variable
B. True; the expression are the same for all values of the vaiables.
False; the expression are never the same
2.Which is the solution of the equation
5-4x=-3?
A.0
B.2
C.-3
D.1/4
3.Which order pair is a solution of the equation y=x–3?
A.(-2,5)
B.(-5,2)
C.(2,5)
D.(5,2)
4.Which ordered pair is a solution of the equation y=3x?
A.(-2,-9)
B.(-8,-18)
C.(-8,-3)
D.(-10,-30)
5.which ordered pair is a solution of the equation y=-9x+4?
A.(10,-86)
B.(-4,-58)
C.(6,-41)
D.(-6,57)
6 years ago
![Cece](/images/users/0/1/128x128.jpeg)
5 years ago
Why couldnt you?
![somethin](/images/users/0/1/128x128.jpeg)
5 years ago
Does anyone have the answers for these or not?
![yo mamma](/images/users/0/1/128x128.jpeg)
4 years ago
ig not
![Katai_lucis_caelum](/images/users/0/1/128x128.jpeg)
4 years ago
1.A
2.A
3.A
4.B
5.A
6.D
7.C
8.C
9.B
10.D
11.C
12.B
13.A
14.C
15.D
16.D
17.D
18.A
19.B
![Explain Bot](/images/users/4931/128x128.jpeg)
7 months ago
1. The equation 9p + 8 = 10p + 7 is open. This means that it contains a variable, in this case "p". The value of "p" can vary, so the equation is not true or false for all possible values of "p".
2. To find the solution of the equation 5 - 4x = -3, we need to isolate the variable "x".
First, subtract 5 from both sides of the equation:
5 - 4x - 5 = -3 - 5
-4x = -8
Next, divide both sides by -4 to solve for "x":
-4x / -4 = -8 / -4
x = 2
Therefore, the solution to the equation is x = 2.
3. To determine which ordered pair is a solution of the equation y = x - 3, we need to substitute the x and y values of the ordered pairs into the equation and check if it holds true.
Let's check each option:
A. (-2, 5): Substituting x = -2 and y = 5 in the equation becomes 5 = -2 - 3, which is not true.
B. (-5, 2): Substituting x = -5 and y = 2 in the equation becomes 2 = -5 - 3, which is not true.
C. (2, 5): Substituting x = 2 and y = 5 in the equation becomes 5 = 2 - 3, which is true.
D. (5, 2): Substituting x = 5 and y = 2 in the equation becomes 2 = 5 - 3, which is true.
Therefore, the ordered pairs (2, 5) and (5, 2) are solutions of the equation y = x - 3.
4. To determine which ordered pair is a solution of the equation y = 3x, we need to substitute the x and y values of the ordered pairs into the equation and check if it holds true.
Let's check each option:
A. (-2, -9): Substituting x = -2 and y = -9 in the equation becomes -9 = 3(-2), which is not true.
B. (-8, -18): Substituting x = -8 and y = -18 in the equation becomes -18 = 3(-8), which is not true.
C. (-8, -3): Substituting x = -8 and y = -3 in the equation becomes -3 = 3(-8), which is not true.
D. (-10, -30): Substituting x = -10 and y = -30 in the equation becomes -30 = 3(-10), which is true.
Therefore, the ordered pair (-10, -30) is a solution of the equation y = 3x.
5. To determine which ordered pair is a solution of the equation y = -9x + 4, we need to substitute the x and y values of the ordered pairs into the equation and check if it holds true.
Let's check each option:
A. (10, -86): Substituting x = 10 and y = -86 in the equation becomes -86 = -9(10) + 4, which is not true.
B. (-4, -58): Substituting x = -4 and y = -58 in the equation becomes -58 = -9(-4) + 4, which is not true.
C. (6, -41): Substituting x = 6 and y = -41 in the equation becomes -41 = -9(6) + 4, which is not true.
D. (-6, 57): Substituting x = -6 and y = 57 in the equation becomes 57 = -9(-6) + 4, which is true.
Therefore, the ordered pair (-6, 57) is a solution of the equation y = -9x + 4.