SOLUTION: Write a proportion to solve each problem. a) A sweater that costs $30 is "on sale" at a 25% discount. What is the sale price? b) The owner of a store buys calculators for $4.50.

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: Write a proportion to solve each problem. a) A sweater that costs $30 is "on sale" at a 25% discount. What is the sale price? b) The owner of a store buys calculators for $4.50.       Log On


   

Question 568059: Write a proportion to solve each problem.
a) A sweater that costs $30 is "on sale" at a 25% discount. What is the sale price?
b) The owner of a store buys calculators for $4.50. If she marks them up by 150% what price does she sell them for?
Answer by niccolei(11) About Me  (Show Source):
You can put this solution on YOUR website!
a.) $30 *.25 = $7.5 (discount)
$30 - $7.5 = $22.5 (sale price)
b.) $4.5 *1.5 = 6.75 (mark up)
$4.5 + 6.75 = 11.25 (selling price)

I hope it would help you. Goodluck