1. **State the problem:**
We are given two scenarios involving rates of change: cold and hot beverage sales over months, and football team earnings and budget balance related to ticket sales and table rentals.
2. **Part 1a: Rate of change of cold beverages and hot beverages**
- Cold beverages start at 7,200 in July and decrease by 750 per month.
- Rate of change for cold beverages is therefore $-750$ cups/month (negative because it decreases).
- Hot beverages are given by $y = 900x + 3300$, where $x$ is months after July.
- The rate of change for hot beverages is the coefficient of $x$, which is $900$ cups/month.
3. **Part 1b: Which rate of change is greater and meaning**
- Compare $|-750| = 750$ and $900$.
- $900 > 750$, so hot beverages increase faster than cold beverages decrease.
- This means hot beverage sales are growing more rapidly than cold beverage sales are declining.
4. **Part 2a: Rate of change for money earned by football team**
- Equation: $y = 15x$, where $y$ is money earned, $x$ is tickets sold.
- Rate of change is $15$ dollars per ticket.
- This means each ticket sold adds 15 dollars to earnings.
5. **Part 2b: Rate of change of budget balance**
- Budget balance decreases as tables rented increase: from 900 to 876 to 852 to 828.
- Change per table: $876 - 900 = -24$, $852 - 876 = -24$, $828 - 852 = -24$.
- Rate of change is $-24$ dollars per table rented.
- This means each table rental reduces the budget balance by 24 dollars.
6. **Part 2c: Compare earnings and spending per table**
- One table seats 8 guests, so tickets per table = 8.
- Earnings per table: $15 \times 8 = 120$ dollars.
- Spending per table: 24 dollars.
- Since $120 > 24$, the team earns more from ticket sales per table than it spends on table rentals.
**Final answers:**
- 1a: Cold beverages rate = $-750$ cups/month, Hot beverages rate = $900$ cups/month.
- 1b: Hot beverage rate is greater; hot sales increase faster than cold sales decrease.
- 2a: Rate of change for money earned = $15$ dollars/ticket.
- 2b: Rate of change of budget balance = $-24$ dollars/table.
- 2c: Team earns more from ticket sales per table than it spends on rentals.
Linear Rates 259094
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