1. x/5=-2
A. -45
B. 35
C. -10
D. 21
2. 13x - 7= 136
A. 11
B. 15
C. 8
D. 9
Solve the following equation
3. 3x - 3=15
A. 4
B. 5
C. 6
D. 7
4. Ernesto loses 14.5 pounds in 7 months. Now he weighs 156.5 pounds. Which equation can be used to find how much he weighed before?
A. x+14.5=156.5
B. x-14.5=156.5
C. 7x+14.5=156.5
D. 7x-14.5=156.5
5. Sanding opened a savings account with $50. Each week after that she deposits eight dollars into her account. How many weeks does it take her to save $450?
A. 56.25 weeks
B. 62.5 weeks
C. 52 weeks
D. 50 weeks
My answers
1. C
2. A
3. C
4. A
5. D
Please respond and if there is anything wrong with these answers please tell me
1. C - yes
2. A - yes
3. C - yes
4. A - yes
5. D - yes
1. yes
2. yes
3. yes
4. disagree He had to weigh MORE before
5. yes
Of course, Damon is right about 4.
I goofed.
Ok thank you guys again!
4 is x-14.5=156.5
Your answers are mostly correct. Let's go through each question and the steps to solve them to ensure accuracy:
1. x/5 = -2
To solve for x, multiply both sides of the equation by 5:
x = -2 * 5
x = -10
The correct answer is C.
2. 13x - 7 = 136
To solve for x, first add 7 to both sides of the equation:
13x = 136 + 7
13x = 143
Then, divide both sides by 13 to isolate x:
x = 143 / 13
x = 11
The correct answer is A.
3. 3x - 3 = 15
To solve for x, first add 3 to both sides of the equation:
3x = 15 + 3
3x = 18
Then, divide both sides by 3 to isolate x:
x = 18 / 3
x = 6
The correct answer is C.
4. The equation to find how much Ernesto weighed before is:
Let x represent Ernesto's weight before:
x - 14.5 = 156.5
The correct answer is B.
5. Sanding deposits $8 each week, starting with an initial balance of $50. We need to find the number of weeks it takes to reach $450. Let's set up an equation to solve for the number of weeks:
50 + 8w = 450
To isolate w, subtract 50 from both sides:
8w = 450 - 50
8w = 400
Divide both sides by 8 to solve for w:
w = 400 / 8
w = 50
The correct answer is D.
Overall, your answers are correct except for question #4. The correct answer is B.