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How do you write 20 less than a number?

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How do you write 20 less than a number?

twenty less than a number means the number minus 20. So now we’re ready to write the mathematical expression from the English sentence. I put x – 20 in parentheses because it has two terms separated by the minus sign and BOTH terms need to be multiplied by x.

How do you write one less than X?

Explanation: Let’s call our number x. One less than x would be x−1 .

How do you write 4 less than X?

Translate “4 less than x” into an algebraic expression. If you’re not sure of this, plug numbers in. If you get four dollars less an hour than (an unknown worker), you wouldn’t subtract that worker’s pay from 4; instead, you’d subtract 4 from that worker’s pay: p – 4. Use this same order in your algebraic expression.

What number is 5 less than 2?

-3
To get 5 less than 2, start from 2 and then move 5 units to the left of 2 to get -3. ∴ 5 less than 2 is -3.

How do I write 5 less than a number?

Explanation:

  1. “Five less than a number” would be the same as saying ” x−5 “, and this will be equal to 17, so the full equation is:
  2. x−5=17.
  3. To find the number representative of x, add five to both sides to get x=22 .

How do you turn an equation into a word problem?

How to Translate Word Problems Into Equations

  1. Step One: Highlight Important Parts of the Text.
  2. Step Two: Establish your variables.
  3. Step Three: Rewrite the Problem as an Equation.
  4. Step Four: Substitute.
  5. Step Five: Simplify and Combine Terms.
  6. Step Six: Divide Each Side of the Equation.
  7. Step Seven: Solve.

What is 4 less than twice a number?

When they are saying “4 less than twice a number”, that’s the same as saying “twice a number minus 4”. When you are asking for less than something, that indicates subtraction! We’ll abbreviate number to n .

How much less than 2 is from 6?

HENCE, -2 is -4 less than -6.

How to write 4 Less than twice a number?

We need to rearrange the word problem a little. When they are saying “4 less than twice a number”, that’s the same as saying “twice a number minus 4”. When you are asking for less than something, that indicates subtraction! We’ll abbreviate number to n. 2n    twice a number −    minus 4  4.

How to say nine less than the total of a number and two?

Translate “nine less than the total of a number and two” into an algebraic expression, and simplify. “The total of” indicates that things are being added. The things, in this case, are (a number) and 2. I’ll need to pick a variable for (a number); I’ll pick:

When to use the less than sign in math?

The symbol used to represent the less than inequality is “< “. It is a universally adopted math symbol of two equal measure strokes that meet in the acute angle at the right. The typical use of the less-than symbol is to compare two values in which the first number is less than the second number, such as in ascending order.

How to translate word problems into mathematical expressions?

Once you’ve learned the basic keywords for translating word problems from English into mathematical expressions and equations, you’ll be presented with various English expressions, and be told to perform the translation. Don’t view the lists of keywords as holy writ, handed down from on high.