An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Approximately 2.81 × 1 0 21 electrons flow through an electric device delivering a current of 15.0 A for 30 seconds. This is calculated by finding the total charge using the current and time, and then determining how many electrons correspond to that charge. Each electron carries a charge of approximately 1.6 × 1 0 − 19 C .
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Calculate the child's weekly wage by multiplying the daily wage by the number of days: $2.00/ d a y × 6 d a ys = $12.00 .
Calculate the adult's weekly wage by multiplying the daily wage by the number of days: $3.00/ d a y × 6 d a ys = $18.00 .
The child earns $12.00 per week.
The adult earns $18.00 per week.
Explanation
Calculate child's weekly wage First, we need to calculate the total amount earned by a child working in a factory for a week. The child earns $2.00 per day and works for 6 days a week.
Calculating child's weekly earnings To find the child's weekly wage, we multiply the daily wage by the number of days worked: c hi l d _ w ee k l y _ w a g e = c hi l d _ d ai l y _ w a g e × n u mb er _ o f _ d a ys c hi l d _ w ee k l y _ w a g e = $2.00/ d a y × 6 d a ys / w ee k = $12.00 p er w ee k So, a child working in a factory earns $12.00 per week.
Calculate adult's weekly wage Next, we calculate the total amount earned by an adult working in a factory for a week. The adult earns $3.00 per day and works for 6 days a week.
Calculating adult's weekly earnings To find the adult's weekly wage, we multiply the daily wage by the number of days worked: a d u lt _ w ee k l y _ w a g e = a d u lt _ d ai l y _ w a g e × n u mb er _ o f _ d a ys a d u lt _ w ee k l y _ w a g e = $3.00/ d a y × 6 d a ys / w ee k = $18.00 p er w ee k So, an adult working in a factory earns $18.00 per week.
Final Answer Therefore, the total amount earned by a child working in a factory is $12.00 per week, and the total amount earned by an adult working in a factory is $18.00 per week.
Examples
Understanding wage calculations is essential in personal finance and economics. For instance, if you're comparing job offers or budgeting your weekly expenses, knowing how to calculate your total earnings based on your hourly or daily wage is crucial. This simple calculation helps you manage your finances effectively and make informed decisions about your income and expenses.
