from the January 2016 Common Core Algebra I Regents
No solving necessary!! Just looking for the equation!!
Students need to remember how to find the area of a rectangle: length by width
What was the original area of the patio? The original area was 120 sq ft (10 x 12)
What is 50% more than 120? Add 1/2 of 120 which is 60 making the new area 120 + 60 = 180 leaving answers (2) and (3).
Since we are adding x amount to each dimension 10 becomes 10 + x and 12 goes to 12 + x.
Those two multiplied together = 180 and voila there it is!