Liz is using the distributive property to evaluate the expression 27 (36) by using friendlier numbers. Her work is shown below.
1 answer:
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Answer:
(x − 2)×(3x+1)
Step-by-step explanation:
We can use this method:
All I did is Subtracting x then adding x which will not affect the result because -x + x = 0
Given:
Initial cost of living = $44,000
Rate of increase = 5% = 0.05
To find:
The cost of living in 20 years.
Solution:
The exponential growth model is:
Where, a is the initial value, r is the growth rate and t is the number of years.
Putting in the above model, we get
Therefore, the cost of living in 20 years is about $116745.10.
