Q. What is the value of the expression below when w=9 ?9w−10Answer:
Identify Values and Expression: Identify the given values and the expression to evaluate.We are given w=9 and the expression 9w−10.We need to substitute w with 9 in the expression.
Substitute Value into Expression: Substitute the value of w into the expression.Replace w with 9 in the expression to get 9×9−10.
Perform Multiplication: Perform the multiplication part of the expression.Calculate 9×9 to get 81.
Subtract from Result: Subtract 10 from the result of the multiplication.Calculate 81−10 to get 71.