Answer :
100% – 20% = 80%
Solution 1 :
100% = x
80% = $648
80x = 64800
x = $810
Solution 2 :
80% • x = $648
80/100 • x = 648
80x = 64800
x = $810
Check :
20% × $810
= 20/100 × $810
= $648
The camera's regular price is $810.
Solution 1 :
100% = x
80% = $648
80x = 64800
x = $810
Solution 2 :
80% • x = $648
80/100 • x = 648
80x = 64800
x = $810
Check :
20% × $810
= 20/100 × $810
= $648
The camera's regular price is $810.