(13.4 + 2.3y + 5.2) - (29.8 - 3.5y + 7.1)
(18.6 + 2.3y) - ( -29.8 - 3.5y)
18.6 + 2.3y + 29.8 + 3.5y
18.6 + 29.8 + 2.3y + 3.5y
41.3 + 5.8y
Answer :
C because if you want his age six years ago, you need to take his present age (A) and subtract 6
Answer:
perimeter = 14
Step-by-step explanation:
perimeter = ∑sides
= x + (x + 3) + (x + 4) --------eq.
= 3x + 7
3x = 7
x = 7/3
plugin values into the equation:
perimeter = ⁷/₃ + (⁷/₃ + 3) + (⁷/₃ + 4)
= 14
therefore, the perimeter of a triangle is 14