2y + 1/3 = 5
2y = -5 -1/3
2y = -16/3
Y = -8/3
Answer:
Exact: 55.899
Estimate: 56
Step-by-step explanation:
8.176 + 5.802 + 41.921 = 55.899
8.176 ~ 8
5.802 ~ 6
41.921 ~ 42
8 + 6 + 42 = 56
Answer:
The answer is ± 5<em>i</em>
Everyone works differently in mental math.
Using the property of commutativity, we can (mentally) rearrange to calculate 89+11 + 27
Since 89+11 is exactly 100, the sum is therefore 100+27=127.
