Answer:
811
Step-by-step explanation:
The place values of digits in base-3 are all powers of 3. The numbers 1, 3, 4, 9 written in base-3 are ...
1
10
11
100
You will recognize these as successive numbers in base 2. Then the 81st number of interest is written in base-3 the way 81 is written in base-2:
101 0001
It will be the sum 3^6 +3^4 +3^0 = 729 +81 +1 = 811
The 81st number is 811.
Answer:
34
Step-by-step explanation:
(x + 12) + 100 + x = 180
2x + 112 = 180
2x = 68
x = 34
8.545 rounded to the nearest tenth is 8.5. I hope this helps.
There are 16 per pound so 16*5= 80. there are 80 ounces in 5lbs.