Key: ☺ = My Answer!
2. Write a word phrase for the algebraic expression. 3x - 7
A. The difference of three times a number x and seven.
B. The difference of seven and three times a number x.
C. Three times a number x fewer than seven. ☺
D. The quotient of three times a number x and seven.
6. Name the subset(s) of real numbers to which the number ZERO belongs. Select all that apply.
A. Irrational Numbers
B. Integers ☺
C. Whole Numbers ☺
D. Natural Numbers
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2.
no, 3x-7 is 7 less than 3 times a number. You have given us 7-3x
(A)
6. correct
thx
2. To write a word phrase for the algebraic expression 3x - 7, you can break it down into two parts: 3x and -7.
- The term 3x means three times a number x. So, you can say "three times a number x."
- The term -7 represents a decrease or subtraction. So, you can say "fewer than seven."
Putting it together, the word phrase for 3x - 7 is "Three times a number x fewer than seven."
Answer: C. Three times a number x fewer than seven. ☺
6. To determine the subset(s) of real numbers that the number zero belongs to, let's examine the options:
- Irrational Numbers: Irrational numbers are numbers that cannot be written as a fraction or ratio. Since zero can be expressed as 0/1, it is a rational number. Therefore, zero does not belong to the subset of irrational numbers.
- Integers: Integers include whole numbers and their negatives. Since zero is neither positive nor negative, it is considered an integer.
- Whole Numbers: Whole numbers include zero and all positive integers. Therefore, zero is a whole number.
- Natural Numbers: Natural numbers include positive integers greater than zero. Since zero is not positive, it is not considered a natural number.
Based on the definitions above, the subsets to which the number zero belongs are:
Answer: B. Integers ☺
C. Whole Numbers ☺