Applications of Algebra- WS1

Algebra Applications Worksheet

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Section 1: Age-Based Questions

1. Sarah is 5 years older than her sister, Emma. The sum of their ages is 29. How old is each sister?

a. Sarah's age: b. Emma's age:

2. Five years ago, the sum of Ahmed's age and Maria's age was 30. If Ahmed is now 3 times as old as Maria, find their current ages.

a. Ahmed's current age: b. Maria's current age:

Percentages- WS1TSZ

Finding Percentages

1. What is 20% of 80?
2. 25 is what percent of 50?
3. If 15% of a number is 45, what is the number?
4. 40% of what number is 120?
5. If 35% of a number is 70, what is the number?
6. What percent of 60 is 15?

Derivative Rules-1

The Ultimate Guide to Derivative Rules: Product, Quotient, and Chain Rule

Derivatives are a cornerstone of calculus, used to analyze rates of change, slopes of curves, and dynamic systems. This guide explains three essential derivative rules: the Product Rule, the Quotient Rule, and the Chain Rule. Whether you're a student, teacher, or professional revisiting calculus, this detailed guide is designed to clarify these concepts with simple and complex examples.

1. Product Rule

Definition

If u(x) and v(x) are two differentiable functions, the derivative of their product is:

\[ \frac{d}{dx}[u(x)v(x)] = u'(x)v(x) + u(x)v'(x) \]

Step-by-Step Explanation

Data Management-1

Types of Graphs and Charts:

• Bar Graphs: Used to compare data between different groups or track changes over time. They are most useful when there are big changes or to show how one group compares against other groups. For example, you can use a bar graph to compare the number of customers by business role.
• Line Graphs: Reveal trends or progress over time, and you can use them to show many different categories of data. For instance, you can use a line graph to show the number of sales over a period of time.

Solving Linear Equations

Steps to Solve a Linear Equation for a Variable

Let's solve the equation \(2x - 5 = 7\):

3. Isolate the Variable on One Side: \(2x = 7 + 5\)
4. Combine Like Terms: \(2x = 12\)
7. Continue Isolating the Variable: Divide both sides by 2: \(x = 6\)
8. Check Your Solution: Substitute \(x = 6\) back into the original equation: \(2(6) - 5 = 7\)
9. Write Down the Solution: \(x = 6\) is the solution.

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Writing Algebraic form of a pattern rule

Steps to Find Algebraic Form of Linear Pattern Rule

1. Identify the Pattern:
   • Examine the given sequence or pattern.
   • Note the relationship between the position of each term and its value.
2. Determine the Common Difference or Ratio:
   • For linear patterns, determine the common difference between consecutive terms.
   • If the pattern is increasing, note how much each term increases by.
   • If the pattern is decreasing, note how much each term decreases by.

The Unyielding Pillars of Success

A Deep Dive into the Importance of Focus and Hard Work

Success, that elusive pinnacle of achievement, is not a mystical summit reserved for a chosen few but a tangible reality that unfolds through the interplay of two steadfast allies: focus and hard work. These virtues, often celebrated as the cornerstones of personal and professional triumph, lay the groundwork for individuals to forge their destinies and carve a meaningful legacy.

Focus, akin to a laser beam honing in on its target, directs our efforts with precision towards a singular objective. In a world brimming with diversions and constant stimuli, the ability to maintain unwavering attention on a goal distinguishes the triumphant from the mediocre. Whether navigating the academic labyrinth, scaling the peaks of a career, or pursuing personal aspirations, the capacity to stay focused becomes a navigational compass, ensuring that energy and resources are channeled efficiently.