Answer:
85+(5x-10)=11x+3 (sum of two non-adjacent interior angle is equal to exterior angle )
75+5x=11x+3
75-3=11x-5x
6x=72
x=72/6
x=12
Answer:
2(n+1)+2
You start with two greens and two columns of two orange squares while adding two orange squares each time. So, the bolded part is the green squares that stay the same. The 2(n+1) represents the two orange columns that increase by one block on each side per image.
Answer:
1. t=240
2.t/3=(t/4)+20
Step-by-step explanation:
Answer:
46.5
Step-by-step explanation:
2[5+2(8-6)]
2[5+2(2)]
2[5+4]
2[9]
18