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

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

Question 2

evaluatesimplify✔ substitute

Revolt · Accepted Answer

✔ substitute

Question 3

evaluate✔ simplifysubstitute

Revolt · Accepted Answer

✔ simplify

Question 4

addingdividing✔ multiplyingsubtracting

Revolt · Accepted Answer

✔ multiplying

Question 5

12.2315.2✔ 36.6312.2

Revolt · Accepted Answer

✔ 36.6

Question 6

Question 6

Revolt · Accepted Answer

First, write the expression as .: 3k; Second, 12.2 in for the variable, k.: substitute; Third, by 3 and 12.2.: simplify; Third, by 3 and 12.2.: multiplying; The answer is: 36.6

Question 7

✔ 3k3 + k12.2k12.2 + k

Revolt · Accepted Answer

✔ 3k; First, write the expression as .: 3k; Second, 12.2 in for the variable, k.: substitute; Third, by 3 and 12.2.: simplify; Third, by 3 and 12.2.: multiplying; The answer is: 36.6

Question 8

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

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

Question 9

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

Revolt · Accepted Answer

✔ d - 20; .: d - 20; .: $15

Question 10

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

Revolt · Accepted Answer

64

Writing and Evaluating Expressions Answers

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