5.
1 answer:
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Seems to be a geometric sequence which is found by
an=nth term
a1=first term
r=common ratio
first term is 0.75
it doubles each time so common ratio is 2
to find the nth term, input n and evaluate
example
to find the 20th term
just to find the kth term, input k for n in
an=nth term
a1=first term
r=common ratio
first term is 0.75
it doubles each time so common ratio is 2
to find the nth term, input n and evaluate
example
to find the 20th term
just to find the kth term, input k for n in
now, the one below that, which is equivalent to that? well, just look above it
For this case, the first thing we must do is define variables.
We have then:
x: number of years
y: total salary
For company 1 we have:
For company 2 we have:
By the time both salaries are equal we have:
From here, we clear the value of x.
We have then:
Answer:
Brenda's salary would be the same with both companies in 8 years.