Homework Help: Pre-Algebra

Posted by Kemmaris on Monday, May 14, 2007 at 9:40pm.

how do i do these two. irene bought a typewriter at rocklanes in 1988 for $200.In 1999, she bought the same model of typewriter for $120.What is the percent decrease in the price of the typewriter. denise bought a typewriter at rocklanes in 1984 for $500. In 2000 , she bought the same model of typewriter for $440. What is the percent decrease in the price of the typewriter?

Percent decrease = 100 x (Original Price - Current Price) / (Original Price)

In the first question, that is (200-120)/200 x 100 = 40%

No one has answered this question yet.

Answer this Question

Related Questions

algebra - Marcella and Rupert bought party stuff. Marcella bought 3 packs of ...
algebra - Bob and his dad visited the hardware store on Saturday. They observed ...
math - jasmine bought 26 pieces of fruit.she bought 6 oranges.she bought twice ...
math - mr harris bought 4 for $0.50, mrs clarke bought 21 for $1.00, mr montaro ...
MATH - bob and his dad visted the hardward store on sunday. They observed the ...
5th grade - out of 100 tickets sold at a school raffle jack bought 5 mat bought ...
5th grade math - Could someone explain what multiplication comparisons are? An ...
MATH! - bob and his dad visited the hardware store on saturday. they observed ...
Math - Bob and his dad visited the hardware store on Saturday. They observed the...
Probability - 4,915 people were surveyed about their recent purchases. 1,027 of...

For Further Reading

First Name:
School Subject:
Answer: