Question

Mrs. Daniels asked Sylvia to come to the front of the class and show her classmates how she solved an equation. Her work is shown.

a) Sylvia made an error in her work.
b) Sylvia's solution is correct.
c) Sylvia's solution is incomplete.
d) Mrs. Daniels did not ask Sylvia to present her work.

Answer 1

Sylvia's solution to the equation is incorrect, as evidenced by an answer of 88 °C.

Step-by-step explanation:

Sylvia's Solution to the Equation

Sylvia's solution to the equation is shown:

Solution for (a)

7: Although, this would be a good opportunity for a student to make up their own formula, driving home the concept and the fact that equations simply capture a concept. Also, the choice of symbols is arbitrary, which the experience would reinforce.

2. The following solutions to each part of the example illustrate how the specific problem-solving strategies are applied. These involve identifying knowns and unknowns, checking to see if the answer is reasonable, and so forth. Solution for (a)

(b) The first time a student solved this problem she got an answer of 88 °C. Explain why this is clearly an incorrect answer.

Sylvia made an error in her work. The incorrect answer of 88 °C shows that Sylvia made a mistake in her solution. The correct answer should be explainable based on the problem and the equations used.