Answer:
an= n * (n+1)
Step-by-step explanation:
2,6,12,20,.....
6-2 =4
12-6 = 6
So there is no common difference because these numbers are not the same
It cannot be an arithmetic difference
6/2 =3
12/6 =2
So there is no common ratio because these numbers are not the same
It cannot be geometric
2, 6, 12, 20,...
+4 +6 +8 +10
a1 =2
a2 =2*3
a3 = 2*6=2*2*3=3*4
a4=2*10=2*2*5=4*5
.....
a5 = 5*6 = 30
an= n * (n+1)
Brand b is 2 cents cheaper than brand a because it is 14 cents per ounce and brand a is 16 cents per ounce you do 1.68 divided by 12 and 1.28 divided by 8
5 would be an answer.<span />
This problem would just be x + (x +7) = 25. It can be simplified to 2x = 18, which can be further simplified to x = 9. 9 is one of your answers. To find the other number, just add 7. Your numbers would be 9 and 16, which do add to 25.
Answer:
8 3/4 feet of wood left
Step-by-step explanation:
10 +1/2 - 1 - 3/4 =
10 - 1 = 9
2/4 -3/4 = -1/4
9 - 1/4 = 8 3/4