Teaching Pal provides resources to registered members only.
Below are some free materials we provide for you to sample.
If you want you to see your child succeed, then take action now and register.
1 – Videos and Slides
2 – Downloadable Worksheets & More
Here are the Answers to problem set 1
3 – Quiz-style Questions & answers
Quiz-summary
0 of 5 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
Information
Practice your algebra skills.
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 5 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- Answered
- Review
-
Question 1 of 5
1. Question
Expand the following expression
x (x-2) + 5 (2x+2)
Correct
x (x-2) + 5 (2x+2)
= X2 – 2x + 10x + 10= X2+8x +10
Incorrect
x (x-2) + 5 (2x+2)
= X2 – 2x + 10x + 10= X2+8x +10
-
Question 2 of 5
2. Question
Solve for x.
5x + 3 = 43
Correct
5x + 3 =43
5x +3-3= 43-3
5x = 40
x = 40 / 5
x = 8Incorrect
5x +3-3= 43-3
5x = 40
x = 40 / 5
x = 8 -
Question 3 of 5
3. Question
Solve for x and y.
4x + 5y = 0
8x – 15y = 5Correct
4x + 5y = 0 … equation A
8x – 15y = 5 … equation B
8x + 10y = 0 … equation C (is the result of multiplying equation A by 2)
– 25y = 5 …
y = 5 / -25 = -0.2Substitute y = -0.2 into equation A
4x + 5y =0
4x + 5(-0.2)=0
4x + (-1) =0
4x – 1 =0
4x =1
x = 1/4 = 0.25Incorrect
4x + 5y = 0 … equation A
8x – 15y = 5 … equation B
8x + 10y = 0 … equation C (is the result of multiplying equation A by 2)
– 25y = 5 …
y = 5 / -25 = -0.2Substitute y = -0.2 into equation A
4x + 5y =0
4x + 5(-0.2)=0
4x + (-1) =0
4x – 1 =0
4x =1
x = 1/4 = 0.25x = 0.25 and y=-0.2
-
Question 4 of 5
4. Question
John spent $102 on shoes. This was $14 less than twice what he spent for a T-shirt. How much did John spend on the T-shirt?
Correct
Each word problem has an unknown number. In this problem, it is the price of the T-shirt. Let x represent the unknown number.
Let x, then, be how much he spent on the T-shirt. So $102 — was $14 less than two times x.
Here is the equation:
2x – 14 = 102
2x = 102 +14
2x = 116
x = 116/2 = $58Incorrect
Each word problem has an unknown number. In this problem, it is the price of the T-shirt. Let x represent the unknown number.
Let x, then, be how much he spent on the T-shirt. So $102 — was $14 less than two times x.
Here is the equation:
2x – 14 = 102
2x = 102 +14
2x = 116
x = 116/2 = $58 -
Question 5 of 5
5. Question
Jun is 3 times as old as Jack.
In another 7 years, Jun will be twice as old as Jack.
How old is Jun now?Correct
Let x be the age of Jack today.
In 7 years – Jack will be x +7Jun’s age today is 3x [three times as old as Jack]
In 7 years Jun will be 3x+7In 7 years, Jun’s age [3x+7] will be twice as old as Jack’s age [x+7]
3x + 7 = 2 (x+7)3x + 7 = 2x +14
3x -2x +7 = 2x +14
x +7 = 14
x = 14-7X = 7
So Jack is 7 now.
Because Jun is 3 times as old as Jun, Jun’s age is 3 x 7 = 21 now.Incorrect
Let x be the age of Jack today.
In 7 years – Jack will be x +7Jun’s age today is 3x [three times as old as Jack]
In 7 years Jun will be 3x+7In 7 years, Jun’s age [3x+7] will be twice as old as Jack’s age [x+7]
3x + 7 = 2 (x+7)3x + 7 = 2x +14
3x -2x +7 = 2x +14
x +7 = 14
x = 14-7X = 7
So Jack is 7 now.
Because Jun is 3 times as old as Jun, Jun’s age is 3 x 7 = 21 no