7 9/12 = 7.75
2 11/12 = 2.917
So we can round both of these up.
7.75 rounds to 8
2.917 rounds to 3
8 + 3 = 11
So the estimated sum is 11.
7 9/12 + 2 11/12 = 10 2/3
So the actual sum is 10 2/3.
The estimated sum is a pretty good estimate to the original number.
Answer:
-2 5/72
Step-by-step explanation:
Use the formula: an = a1 +(n-1)d
a1 = -2, d= -2
A35 = -2 + (35-1)(-2)
A35 = -2+(-68)
A35 = -70
Answer:
b i think not positive tho
Step-by-step explanation:
