Algebra question

Question

Locate a sale on television. Choose one television that is on sale. Note the original price and the discount as a percent. Find the saving in dollars and cents on the purchase of this television. 

Answer 1

No luck locating an add that gives just the percent.

Every last one of them has the original price and the discount price.

 

Here's what you do. Suppose for example the TV set 

costs $500 and it is 30% percent off.

 

First change 30% to a pure decimal number by moving the

decimal two places to the left <--- that way

 

So 30% = 0.30

Next you multiply: so 30% of 500 = 0.30 x 500 = 150

So $150 shall be discounted.

The sale price is $500 - $150 = $350