Podcast
Questions and Answers
What is the algebraic expression for 'The sum of a number and 7, multiplied by 3'?
What is the algebraic expression for 'The sum of a number and 7, multiplied by 3'?
- 3 + x + 7
- (3 * x) + 7
- 3x + 7
- 3 * (x + 7) (correct)
What is the algebraic expression for 'Nine less than twice a number'?
What is the algebraic expression for 'Nine less than twice a number'?
- 9 * 2x
- 2(x - 9)
- 2x - 9 (correct)
- 9 - 2x
Which algebraic expression represents 'Two times the difference between a number and five'?
Which algebraic expression represents 'Two times the difference between a number and five'?
- 2 * (x + 5)
- 2 - (x - 5)
- 2 * (x - 5) (correct)
- 2x - 5
Which of the following correctly represents 'The quotient of a number and 5, increased by 3'?
Which of the following correctly represents 'The quotient of a number and 5, increased by 3'?
What is the algebraic expression for 'The product of a number and four, decreased by ten'?
What is the algebraic expression for 'The product of a number and four, decreased by ten'?
If y represents a number, what is the algebraic expression for 'Six more than three times the number'?
If y represents a number, what is the algebraic expression for 'Six more than three times the number'?
Flashcards
3 times a number
3 times a number
The product of 3 and the variable representing the number.
The sum of a number and seven
The sum of a number and seven
The sum of the variable representing the number and 7.
5 less than a number
5 less than a number
Subtract 5 from the variable representing the number.
The product of two numbers, a and b
The product of two numbers, a and b
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Seven less than twice a number
Seven less than twice a number
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Study Notes
Algebraic Expressions
- "3 times a number": 3x (where x represents the number)
- "The sum of a number and seven": x + 7
- "5 less than a number": x - 5
- "The product of two numbers, a and b": ab
- "Seven less than twice a number": 2x - 7
- "Fifteen fewer than a number": x - 15
- "Twice a number": 2x
- "The quotient of a number and five": x/5 or x ÷ 5
- "The difference between twenty and a number": 20 - x
- "Three times the sum of a number and seven": 3(x + 7)
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