An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Ted's monthly cash inflow is $5,225, and his cash outflow is also $5,225.
Ted's monthly savings are calculated by subtracting total outflow from total inflow: $5 , 225 − $5 , 225 = $0 .
Ted's financial plan is missing a savings component, as his expenses equal his income.
Savings are crucial for emergencies, investments, and retirement, highlighting the importance of incorporating them into Ted's financial plan. The missing part of Ted's financial plan is savings .
Explanation
Analyzing Ted's Cash Flow Ted's monthly cash inflow totals $5,225, derived from his disposable income and investment income. His monthly cash outflow also amounts to $5,225, covering expenses like rent, utilities, and recreation.
Calculating Monthly Savings To determine Ted's monthly savings, we subtract his total cash outflow from his total cash inflow: $5 , 225 − $5 , 225 = $0 .
Identifying the Missing Component Since Ted's expenses match his income, he isn't saving any money each month. A crucial element missing from Ted's financial plan is a savings component.
Importance of Savings Savings are vital for several reasons: they provide a financial cushion for unexpected expenses (like medical bills or car repairs), enable future investments (such as purchasing a home or starting a business), and ensure a comfortable retirement. Without savings, Ted is financially vulnerable and missing out on opportunities for long-term financial growth.
Examples
Imagine you're managing a lemonade stand. If you spend all the money you earn each day on more lemons and sugar, you won't have any extra money to buy a new sign or a better pitcher. Similarly, Ted needs to save a portion of his income each month to prepare for unexpected expenses, make investments, and secure his financial future. Saving regularly, even small amounts, can make a big difference over time, just like saving a little bit of your lemonade profits each day can help you grow your business.
The total charge delivered by the device is 450 coulombs. Using the charge of an electron, approximately 2.81 × 10²¹ electrons flow through the device in 30 seconds.
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