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# help with percent of salary

1.  Suppose you are offered two jobs.  One pays \$30,000 the first year with annual raises of \$2,000 each year.
The second offers a starting salary of \$27,000 and raises of 8% each year.  during your tenth year, what
would  your yearly salary be from

a)  the first job

b)  the second job

2.  How do I solve this problem.  Which pays more over a course of 10 days --\$100 per day for 10 days or
one dollar the firsrt day, \$2.00 the second, \$4.00 the third, \$8.00 the fourth, etc. up to and including
the 10th day?

thanks

### 1 Answer by Expert Tutors

Philip P. | Effective and Affordable Math TutorEffective and Affordable Math Tutor
5.0 5.0 (428 lesson ratings) (428)
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1)  The first payment method is (\$30,000) + (\$2000)*y,  where y = years

The second payment method is (\$27,000)*(1+0.08)y  where y is years (note it's to the y power)

Plug in the value of y you want and see which payment method is better.

2)  The first payment method is \$100 * 10 days = ?

The second payment method is ∑\$2d, where d=days.  So
\$20+\$21+\$22+ ... +\$210 = ?