The price: - last year: $2.25 - this year: $.45 The decrease: $2.25 - $.45 = $1.80 2.25 : 1.80 = 100 : x 2.25 x = 180 x = 180 : 2.25 x = 80 Answer: The percent of decrease is A ) 80%
Answer: Corey substituted the number of swimmers into the variable (x) representing the temperature. Then he didn't wonder if the polar bear club really has 80 members.
