More percents

Question

  Lee buys computer and printer= $2028

printer cost 30% of the price of the computer

what is the price of the computer

Answer 1

Lilly, this is a toughie, but we can do it!

 

We want to know the price of the computer. Let's call it c.

 

The word "of" in a problem means to multiply.  30% = .30. So, the cost of the printer is .30c.

 

If we add the cost of the computer, c, to the cost of the printer, .30c, then we get 1.30c. We know that the total is $2028, so our equation is 1.30c = $2028.  

 

Dividing both sides by 1.30, we get c = $1560.

 

Let's check.  $1560 x .30 = $468. 

 

$468 + $1560 = $2028. Check!

Answer 2

2028=total

 

  X   =   30     * time to cross multiple

2028     100

 

30*2028=100x

x=608.4 this is the difference in cost so the answer is total-difference = 2028-608.4

ans=$1419.6