what is the answer to these problems

Question

16 dollars is what percent of 10 dollars

 

 

alex wants to buy a potable digital player that sells for 89 dollars he sees it advertised for 30 percent off how much should he expect to pay for it before taxes

 

 

Answer 1

 

a)

 

 

A percent is a number out of 100.  We can set a proportion.

 

 

16 / 10 = x / 100

 

 

Cross multiply.

 

10x = 1600

 

 

Divide both sides of equation by 10.

 

x = 160

 

 

16 dollars is 160 percent of 10 dollars.

 

 

b)

 

Multiply the discount by the price.  Then subtract the result from the price.

 

89 - 89(0.30) =

89 - 26.70 =

62.30

 

He can expect to pay $62.30 for the digital player before taxes.