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 <----kelvins work

Answer 1

Answer:

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.

Answer 2

The error.....Kelvin just figured the 60% markdown cost...not the final price

the final price would be : 30.65 - 0.60(30.65) = 30.65 - 18.39 = 12.26
so 12.26 is the final price

or another way to do this is : if it is marked down 60%, then u r actually paying 40%......0.40(30.65) = 12.26