Question

Error Analysis! Answer both parts of the question.

Kaitlyn solved the equation 5y = 15 and found the answer to be y = 75.

(Problem down below in file)

Part A: In a complete sentence or two, explain what Kaitlyn's error was. What did she do wrong?

Part B: What is the correct answer? Show your work and/or explain your reasoning.

Answer 1

• y = 3

Explanation (Part A):

• She was supposed to divide five both sides. However, she divided one side by five and multiplied five on the other side, which makes her answer incorrect.
• She got confused that if any side is divided by a number, the other side must be divided by that same number.

Solution (Part B):

• 5y = 15
• => 5y/5 = 15/5
• => y = 3

The correct answer must be 'y = 3'.

Answer 2

Kaitlin's answer is wrong because she is supposed to by dividing. When trying to get rid of a number from a variable you have to divide the number by itself and whatever you do to one side you have to do to the other side

so you would do 5/5 - cancels out

15/5=3

y=3

Explanation:

have a great day :D