1.) the original price of a sofa is $500. answer the following questions.
a. if the sofa price decreased by 20%, what is the new price?
b. the company can’t sell the sofa after 3 weeks so they reduce the price to $320. what is the percent decrease?
c. if the company reduces the price in week 4 to $290, what is the percent decrease? explain steps < 3

Part a) The new price is

Part b) The percent decrease is 20%

Part c) The percent decrease is 9.375%

Step-by-step explanation:

we know that

The original price of a sofa is $500

This price represent the 100%

Part a) If the sofa price decreased by 20%, what is the new price?

Let

x -----> the new price

we know that

so

The new price is equal to the original price multiplied by 0.80

Part b) The company can’t sell the sofa after 3 weeks so they reduce the price to $320. What is the percent decrease?

In this moment the price of sofa is $400

Find the difference between the original price and the new price

using proportion

Find out the percent decrease

Let

x ----> the percent decrease

Part c) If the company reduces the price in week 4 to $290, what is the percent decrease?

In this moment the price of sofa is $320

Find the difference between the original price and the new price

using proportion

Find out the percent decrease

Let

x ----> the percent decrease

-.042%

Step-by-step explanation:

290-500=-210/500=-.42*100=-.042% Decrease

hope this helps

555.99.

step-by-step explanation:

hope this

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value