A table is on sale for 62% off. The sale price is $258.40 . What is the regular price?

1 Answer
Feb 17, 2018

See a solution process below:

Explanation:

The formula for finding the sales price of an item is:

#s = p - (p * d)#

Where

#s# is the sales price: $258.40 for this problem.

#p# is the original price of the item: what we are solving for in this problem.

#d# is the discount on the item. 62% for this problem. "Percent" or "%" means "out of 100" or "per 100", Therefore 62% can be written as #62/100#.

Substituting and solving for #p# gives:

#$258.40 = p - (p * 62/100)#

#$258.40 = 1p - 62/100p#

#$258.40 = 100/100p - 62/100p#

#$258.40 = (100/100 - 62/100)p#

#$258.40 = 38/100p#

#color(red)(100)/color(blue)(38) xx $258.40 = color(red)(100)/color(blue)(38) xx 38/100p#

#($25840.00)/color(blue)(38) = cancel(color(red)(100))/cancel(color(blue)(38)) xx color(blue)(cancel(color(black)(38)))/color(red)(cancel(color(black)(100)))p#

#$680.00 = p#

#p = $680.00#

The original price of the table was $680.00