Writing and Evaluating Expressions

Question 1

Write the expression as .Write the expression as 90 – a. Write the expression as a – 90. Substitute 102 in for the variable, a.Simplify by subtracting 90 from 102. Simplify by dividing 102 by 90. The answer is 1.13.The answer is 12.

Revolt · Accepted Answer

C: Write the expression as a – 90.; D: Substitute 102 in for the variable, a.; E: Simplify by subtracting 90 from 102.; H: The answer is 12.

Question 2

Question 2

Revolt · Accepted Answer

.: d - 20; .: $15

Question 3

✔ 3k3 + k12.2k12.2 + k

Revolt · Accepted Answer

A: ✔ 3k

Question 4

Write and evaluate the expression. Then, select the correct answer. The sum of forty-five and a number; evaluate when n = 1.1

Revolt · Accepted Answer

B: 45 + n; when n = 1.1, the value is 46.1.

Question 5

The expression to model the situation is 20d20 + d✔ d - 20d/20.

Revolt · Accepted Answer

C: ✔ d - 20

Question 6

The value of the expression when t = 32 degrees is degrees.

Revolt · Accepted Answer

64

Question 7

The expression is .The expression is .The expression is . The expression is . The answer is . The answer is 6.

Revolt · Accepted Answer

C: The expression is .; F: The answer is 6.

Question 8

Which expression has a value of 32 when m = 8?

Revolt · Accepted Answer

B: 4m

Question 9

No, the student wrote a division expression instead of a subtraction expression.No, the student simplified the fraction incorrectly.No, the student made an error when substituting. Yes, the student’s work is correct.

Revolt · Accepted Answer

A: No, the student wrote a division expression instead of a subtraction expression.

Question 10

Evaluate when h = 8.

Revolt · Accepted Answer

The expression for Adi's study time is h + 3. If Adi studied for h = 8 hours, then 8 + 3 = 11. Adi studied for a total of 11 hours.

Writing and Evaluating Expressions Answers

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