Rafael writes an expression to represent “a number, n, decreased by thirty-one.” Then he evaluates that expression if mr023-1.jpg. Which statements are true about the expression and its evaluation? Check all that apply.

in Other Math Topics by Level 10 User (57.4k points)

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2 Answers

  1. F
  2. T
  3. F
  4. T
  5. F
  6. F
  7. T
  8. T 29-31=-2
by Top Rated User (1.2m points)

It says check all that apply (not just one). I used true (T) or false (F) where T represents a check. F means I didn't check.

In 8 I added extra information for the user to show the result of subtraction (in case she needed it at the time).

Rafael writes an expression to represent “a number, n, decreased by thirty-one.” Then he evaluates that expression if n = 29. Which statements are true about the expression and its evaluation? Check all that apply.

The correct expression is 31 minus n.

This is a subtraction expression.

This is an addition expression.

To evaluate, substitute 29 for the variable in the expression.

To evaluate, substitute 31 for the variable in the equation.

To evaluate the expression, add 31 to 29.

The correct expression is n minus 31.

To evaluate the expression, subtract 31 from 29.

by

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