Table of Contents
- 1 What is 9 increased by a number?
- 2 How would you write the expression for nine less than a number?
- 3 What does it mean for a number to be decreased by?
- 4 What does increased mean in math?
- 5 What is 1 less than twice the number?
- 6 What does twice a number mean?
- 7 What is the meaning of thrice the sum?
- 8 What happens when twice a number is decreased by 9?
- 9 Is there a 9 in your birth date?
- 10 What is the value of the expression 9 + 8?
What is 9 increased by a number?
Algebraic Expressions With Example Problems and Interactive Exercises
| Phrase | Expression |
|---|---|
| nine increased by a number x | 9 + x |
| fourteen decreased by a number p | 14 – p |
| seven less than a number t | t – 7 |
| the product of 9 and a number n | 9 · n or 9n |
How would you write the expression for nine less than a number?
The phrase Nine less than a number suggests that 9 has been subtracted from the number. So, we can write it as x−9 .
What does decreased by mean in math?
subtraction
Notice that the phrase “decreased by” tells us to use subtraction.
What does it mean for a number to be decreased by?
“decreased by” means made less by. 10 decreased by 4 means 10−4=6. a and b also just represent numbers.
What does increased mean in math?
growing larger or greater; enlarging; augmenting. Mathematics. (of a function) having the property that for any two points in the domain such that one is larger than the other, the image of the larger point is greater than or equal to the image of the smaller point; nondecreasing. Compare decreasing (def. 2).
What does increased mean in algebraic expressions?
Increased indicates addition, even though the word “by” may sound like multiplication. We are increasing by 6 units, so we add 6 .
What is 1 less than twice the number?
seventeen
Names for algebraic expressions
| Equation in Words | Equation in Symbols |
|---|---|
| One less than twice a number is seventeen. | 2x – 1 = 17 |
| Twelve is the product of a number and three. | 12 = 3x |
| Half of a number is twenty. | ½x = 20 |
| A number is equal to the sum of twice the number and negative three. | x = 2x + (-3) |
What does twice a number mean?
Next, “twice a number” means to multiply the number by 2 giving: 2×n or 2⋅n or 2n.
What is 10 less than a number?
To find 10 less than a number, subtract 1 from the digit at the tens place. For example: Let’s find 10 less than the number 47.
What is the meaning of thrice the sum?
Three times. 12 is thrice 4 (because 3 × 4 = 12)
What happens when twice a number is decreased by 9?
SOLUTION: Twice a number is decreased by 9, and this sum is multiplied by 4. The result is 8 less than 10 times the number. What is the number? SOLUTION: Twice a number is decreased by 9, and this sum is multiplied by 4.
What is the meaning of the number nine?
So symbolically, the number nine is the container for all worldly experiences. As well as this, it’s also made up of the sacred trinity, thrice (3 x 3) which gives it additional sacred power. When something is repeated 3 times, its potency is increased.
Is there a 9 in your birth date?
Perhaps there’s a 9 in your birth date or maybe you have a lot of the letters I or R in your name — these letters are both associated with the number 9. This number may also be your Personality number, Expression number, Destiny number, Soul Urge number, or any other placement in your Numerology chart!
What is the value of the expression 9 + 8?
The expression 9 + 8 represents a single number (17). This expression is a numerical expression, (also called an arithmetic expression). The expression 9 + x represents a value that can change. If x is 2, then the expression 9 + x has a value of 11.