Aldo is a software salesperson. His base salary is$2400 and he makes $90 more for every copy of English is Fun he sells. His total pay, p (in dollars), after selling c copies is given by the following.

Question

P=2400+90c
Answer the following questions.

If Aldo's total pay is$5190 , how many copies did he sell?

What is Aldo's total pay if he sells 21 copies?

Answer 1

To find the number of copies Aldo sold, we can set up an equation using the formula for his total pay:

P = 2400 + 90c

We can plug in the given total pay of $5190:

5190 = 2400 + 90c

Subtracting 2400 from both sides of the equation gives:

2790 = 90c

Dividing both sides by 90 gives:

c = 31

Therefore, Aldo sold 31 copies.

To find Aldo's total pay if he sells 21 copies, we can again use the formula for his total pay:

P = 2400 + 90c

Plugging in c = 21 gives:

P = 2400 + 90(21)
= 2400 + 1890
= 4290

Therefore, Aldo's total pay if he sells 21 copies is $4290.