Question

A video game that usually costs $30.65 is marked down 60%. Kelvin determined that the new price of the game would be $18.39. Look at Kelvin’s work and find his error.
($30.65)(0.60) = $18.39

Answer 1

60% of 30.65 is $18.39
Kelvin thought that was the final number but no so you now must subtract $30.65 from $18.39 which is then your final answer $12.39

Answer 2

Answer:

Kelvin wrote 60 the wrong way.

He has to write $30.65 - 60%, not 0.60.

Here is the final correct equation:

$30.65 - 60% = 12.26

Answer 3

Sample Response: Kelvin should have subtracted $18.39 from $30.65 to find the marked-down price. He could also have multiplied the original cost by 40% to find the sale price of $12.26.