Check my answers please:)
1.
Solve, round to nearest tenth if needed.
7r - 7 = 2r + 18
A. r = -5
B. r = 5 ***
C. r = 2.2
D. r = 1.2
2.
Solve, round to nearest tenth if needed.
2x + 12 = 18 - x
A. x = 3
B. x = 10
C. x = 6
D. x = 2 ***
3.
Solve, round to nearest tenth if needed.
8x - 3 = 15x + 18
A. x = -3 ***
B. x = 3
C. x = 2.1
D. x = .9
4.
Solve, round to nearest tenth if needed.
6y - 6 = 4y + 16
A. y = 2.2
B. y = -2.2
C. y = 11 ***
D. y = 5
5.
Solve, round to nearest tenth if needed.
3(x - 4) = 5(x + 2)
A. x = 11
B. x = -11***
C. x = 1
D. x = -1
B D A C B
1. B
2. D
3. A
4. C
5. B
is correct, thanks!
Nvm - they are all right.
all correct. good work.
go to the head of the class, all correct.
yeah it is b d a c b
Thanks:)
Hey I'm trying to get this and I understand some of it but I'm still struggling if anyone can explain how to do this it would be very mutch appreciated
Let's go through each question to check your answers:
1.
The given equation is: 7r - 7 = 2r + 18
To solve for r, we need to isolate the variable on one side of the equation. Let's start by subtracting 2r from both sides:
7r - 2r - 7 = 18
Simplifying the left side gives us:
5r - 7 = 18
Next, we can add 7 to both sides:
5r = 18 + 7
5r = 25
Finally, divide both sides by 5:
r = 25/5
r = 5
Your answer of r = 5 is correct. Well done! So, the correct answer is B. r = 5.
2.
The given equation is: 2x + 12 = 18 - x
To solve for x, let's start by adding x to both sides:
2x + x + 12 = 18
Combining like terms gives us:
3x + 12 = 18
Next, subtract 12 from both sides:
3x = 18 - 12
3x = 6
Finally, divide both sides by 3:
x = 6/3
x = 2
Your answer of x = 2 is correct. Good job! So, the correct answer is D. x = 2.
3.
The given equation is: 8x - 3 = 15x + 18
To solve for x, let's start by subtracting 15x from both sides:
8x - 15x - 3 = 18
Simplifying the left side gives us:
-7x - 3 = 18
Next, add 3 to both sides:
-7x = 18 + 3
-7x = 21
Finally, divide both sides by -7:
x = 21/-7
x = -3
Your answer of x = -3 is correct. Great job! So, the correct answer is A. x = -3.
4.
The given equation is: 6y - 6 = 4y + 16
To solve for y, let's start by subtracting 4y from both sides:
6y - 4y - 6 = 16
Simplifying the left side gives us:
2y - 6 = 16
Next, add 6 to both sides:
2y = 16 + 6
2y = 22
Finally, divide both sides by 2:
y = 22/2
y = 11
Your answer of y = 11 is correct. Excellent work! So, the correct answer is C. y = 11.
5.
The given equation is: 3(x - 4) = 5(x + 2)
Let's distribute the 3 on the left side and the 5 on the right side:
3x - 12 = 5x + 10
To solve for x, let's start by subtracting 3x from both sides:
-12 = 2x + 10
Next, subtract 10 from both sides:
-12 - 10 = 2x
-22 = 2x
Finally, divide both sides by 2:
x = -22/2
x = -11
Your answer of x = -11 is correct. Fantastic job! So, the correct answer is B. x = -11.
Great job on solving these equations correctly! Keep up the good work!