5 months ago
Q:

If you have an item that increases by 75% to $140.What was it’s original price?

Accepted Solution

A:

Solution variant #1.

Add similar elements: $ x+0.75x=1.75x$
$1.75x=140$
Multiply both sides by $100$
$1.75x\cdot 100=140\cdot 100$
Refine
$175x=14000$
Divide both sides by $175$
$\frac{175x}{175}=\frac{14000}{175}$
Simplify
$x=80$