Question

Flavio invested some money in the stock market and is keeping track of his earnings. Unfortunately, it is a bad month for the stock market. On the first day of the month, Flavio checks the account and sees that he has lost money! He now has negative one hundred thirty-seven dollars in earnings. It keeps getting worse; his earnings change by negative sixteen dollars per day. Define units for the number of days after the first day of the month and Flavio's earnings. After six days, what are Flavio's earnings? What are Flavio's earnings after twenty days? Enter a variable for the number of days after the first day of the month and use this variable to write an expression for Flavio's earnings.

Answer 1

Let's define some variables to represent the number of days after the first day of the month and Flavio's earnings.

- Let "d" represent the number of days after the first day of the month.

- Let "Earnings" represent Flavio's earnings.

Given that Flavio starts with negative $137 in earnings and his earnings decrease by $16 per day, we can write an expression for his earnings as a function of the number of days, "d," after the first day of the month:

Earnings(d) = -137 - 16d

Now, let's calculate Flavio's earnings after six days and after twenty days:

1. After six days (d = 6):

Earnings(6) = -137 - 16 * 6

Earnings(6) = -137 - 96

Earnings(6) = -233 dollars

2. After twenty days (d = 20):

Earnings(20) = -137 - 16 * 20

Earnings(20) = -137 - 320

Earnings(20) = -457 dollars

So, after six days, Flavio's earnings are -$233, and after twenty days, his earnings are -$457.

Explanation:

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