I'm so sorry if this is wrong but it might be 24.
<em>Answer</em>
$518,000
<em>Step-by-step explanation</em>
An employee earns $56,000 in the first year.
Given that every year, the annual salary increases by $2,500, then in the second year the employee will earn $56,000 + $2,500, in the third year, the employee will earn $56,000 + 2x$2,500, and so on.
Imagine, at the first day you have only one penny. Then tomorrow you have 2 pennies, next day you have 4 (2x2), next day you have 8 (4x2), next day you have 16 (8x2).... and so forth.
It looks like geometric sequence isn't it? (the ratio between the number of pennies that you have from the 2nd day and the 1st day is 2)
So, by using geometric sequence theorem we can total those pennies until day-27
S (total pennies at day-27) = (1)(2^27-1) / 2-1 = 2^26 pennies
So, you have 2^26 pennies.. a big number of pennies huh?=))
{The formula is: S = a( r^n-1) / r-1
Where:
a= the number of pennies that you've got at the 1st day
n= number of days you spent to collect those pennies)
r= the ratio of the number of pennies}
7X +3 equals 17: solve for x
Help! X= 2
