What is the smallest number with exactly 7 factors?
2 answers:
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Answer:
The value of the machine after two years is approximately $466.6
Step-by-step explanation:
The details of the valuation of the machine are;
The function giving the machine value, 'V', is V =
Where;
C = The original cost of the machine
r = The depreciation rate
t = The time the machine has been in service
When C = $576, r = 0.1, t = 2 years, we have;
Therefore, the value of the machine that costs $576 having a depreciation of 0.1 after 2 years is, V = $466.58
By rounding to the nearest cent, we have, V = $466.6.
Check the picture below.
Answer:
1) ok, we know that if we divide one number by the same number, the solution is 1 ; this is: a/a = 1
so we could write something as:
3 = 3*1 = 3*(5/5) = (3*5)/5 = 15/5
so 3 = 15/5
this is especially useful when working with addition of fractions.
2) this is really useful if you have a square root in the denominator.
for example :
3) you also could do this in the next way:
3 = 3*1 = 3*(7/7) = 3*(3+4)/7= 9/7 + 12/7
where i splitted the 7 into 3 +4, this relation could be useful sometime.
4) if you do the difference between some number and the prior number; you get one; this is : (5 -4) =1
then: 3= 3*1 = 3*(5 - 4) = 15 - 12