SOLUTION: I need help with these 3 problems. Thank you! A shop sells compact disks for $15 a piece. If each disk costs $6 to the shop owner how much profit percent does the shop owner ear

Algebra.Com
Question 366704: I need help with these 3 problems. Thank you!
A shop sells compact disks for $15 a piece. If each disk costs $6 to the shop owner how much profit percent does the shop owner earn?
A computer company gives a discount of 10% on a new piece of software. If it makes a profit of 4%, what percent does the marked price exceed the cost price?
What single discount is equivalent to two successive discounts of 15% and 7%?

Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
Let p=profit
6p=15
p=15/6
=5/2=2.5=250%
.
Ed

RELATED QUESTIONS

A shop sells compact disks for $15 per piece. If each disk costs $6 to the shop owner how (answered by rfer)
A shop sells compact disks for $15 per piece. If each disk costs $6 to the shop owner how (answered by rfer)
A shop sells compact disks for $15 per piece. If each disk costs $6 to the shop owner how (answered by josmiceli)
A shop sells compact disks for $15 per piece. If each disk costs $6 to the shop owner... (answered by ewatrrr)
A shop sells compact disks for $18 per piece. If each disk costs $10 to the shop owner... (answered by rfer)
a shop sells compact discs for $15 per piece. If each disk costs $12 to the shop owner... (answered by rfer)
A shop sells compact disks for $16 per piece. If the disks cost $10 to the shop owner how (answered by dabanfield)
Lakota bought 6 new compact disks and 2 used compact disks for $127.92. At the same... (answered by algebrapro18)
Mary bought 6 new compact disks and 2 used compact disks for $127.92. At the same prices, (answered by josmiceli)