Question

Michele is starting a new pool-cleaning business. It costs her $85 to purchase supplies. Michele charges $40 each time she cleans a pool. Which equation can be used to determine the profit, y, Michele earns after she cleans x pools?

y=40x- 85
y=40x+ 85
y=85x- 40
y=85x+ 40​

Answer 1

The equation that can be used to determine the profit Michele earns after she cleans x pools is y = 40x - 85.

Step-by-step explanation:

The equation that can be used to determine the profit Michele earns after she cleans x pools is y = 40x - 85.

Here's how to interpret the equation:

1. y represents the profit Michele earns after cleaning a certain number of pools.
2. x represents the number of pools Michele cleans.
3. The coefficient of x, which is 40, represents the amount of profit Michele earns per pool cleaned.
4. The constant term, which is -85, represents the initial cost of $85 that Michele spends on supplies.

Answer 2

Option A : y = 40x - 85 is the correct answer.

Step-by-step explanation:

Given that:

Cost of purchasing supplies = $85

Cost charged for cleaning a pool = $40

Let,

x be the number of pools cleaned.

y be the profit

Profit = Cost of pools cleaned - purchase price of supplies

y = 40x - 85

Hence,

Option A : y = 40x - 85 is the correct answer.