Question

Felipe is a software salesman. His base salary is $2100, and he makes an additional $70 for every copy of math is fun he sells. Let P represent his total pay in dollars, and let N represent the number of copies of math is fun he sells. Write an equation relating P to N then use this equation to find his total pay if he sells 27 copies of math is fun.

Answer 1

Based on the given information, we can determine the constant and the variable payment.

• He gets $2100 as based salary (never changes, constant).

,

• The additional $70 depends on ,N ,(variable).

This information can help us build the equation:

$P=70N+2100$

Therefore, if he sells 27 copies, then the total payment is:

$P=70\cdot27+2100$$P=1890+2100$$P=3990$

Answer:

$P=70N+2100$

P( 27 ) = $3990