2x+3 + 3x-4 + 2x+3 + 3x-4 = 78
10x -2 = 78
10x = 80
x=8
deck is 2(8)+3 by 3(8)-4, or 19 by 20
24 I think is the answer but I'm not sure. Hope I helped:)
Answer:
-9/14
Step-by-step explanation:
Assume each square is 1 unit.
The base of the large triangle is 6 units and the base of the smaller triangle is 3 units.
The scale factor is 1/2
Subtract 15 from both sides
You want to focus on isolating the variable (x)
