Question

HELP PLEASE

use the given information to answer each question.

7. A dress that normally sells for $72 is on sale for $45. what is the percent decrease in the price?

8. A home purchased for $120,000 in 2012 is sold for $156,000 in 2015. what is the percent increase in the price?

9. the CD warehouse purchases CDs for $6 each and sells them for $9 each. what is the percent increase in the price?

10. the CD warehouse is having a clearance sale. A CD player that originally sells for $60 is now priced at $36. what is the percent decrease in the price?

11. the local highschool sold 1914 tickets this year to its spring musical. That was 174 more rickets sold than last year. what is the percent increase in the number of tickets sold?

12. Ken's heart rate went from 74 beats per minute while resting to 148 beats per minute while exercising. What is the percent increase In his heart rate

Answer 1

7.
Discounted price X
————————— = ———
Original Price 100

45 x
—- = —-
72 100

Cross multiply

45 times 100= 4500
72 times x= 72x

72x=4500

Divide

4500/72= 62.5%