Answer:
Step-by-step explanation:
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Answer: 15 goats
Step-by-step explanation:
h = hens - they have 2 legs
g = goats - they have 4 legs
The equations would be:
h + g = 19
2h + 4g = 68
To solve this, I personally prefer substitution, we're isolating h since we need to find g:
h + g = 19
h = 19 - g
Now that we have h, we can plug this into the second equation:
2h + 4g = 68
2(19 - g) + 4g = 68
38 - 2g + 4g = 68
2g = 30
g = 15
There are 15 goats.
Adding onto this, 19 - 15 = 4, so there are 4 hens.
You're correct with the answer you have selected. It's 7.2 x 10^7
For how many years?
In any case I will give you the formula & you will plug into the number of years"
Remaining Value (or Salvage Value) = initial cost(1 - rate%)^n(number of years
Remaining value after n years = 15000(1-23%)^n
Answer: a=51
Step-by-step explanation: