Do You Know Linear Word Problems?

Explanation
In linear word problems, it is common to denote the unknown quantities by variables. In this case, the correct answer is x, y. This means that x and y are the unknown quantities in the problem.

Explanation
Linear Word Problems is a sub-topic under Algebra. This is because linear word problems involve using algebraic equations to solve real-world problems. In these types of problems, variables are used to represent unknown quantities, and equations are set up to represent the relationships between these quantities. By solving these equations, we can find the values of the variables and solve the word problems. Therefore, linear word problems are a specific application of algebra in a real-world context.

Explanation
Algebra is a topic that falls under the subject of Mathematics. It is a branch of mathematics that deals with symbols and the rules for manipulating those symbols to solve equations and analyze mathematical relationships. It is used extensively in various fields such as physics, engineering, economics, and computer science.

Explanation
Mathematics is usually taught and studied at school because it is an essential subject that provides students with important problem-solving skills and logical thinking abilities. Schools have dedicated math teachers who can effectively teach the subject and provide guidance to students. Additionally, schools provide a structured learning environment with resources such as textbooks, classrooms, and educational materials that are necessary for teaching and learning mathematics effectively.

Explanation
Will Smith is not a scientist among these people. While Bill Nye, Albert Einstein, and Isaac Newton are all renowned scientists, Will Smith is a famous actor and rapper, not known for any scientific contributions.

Explanation
In word problems, English words are translated into mathematics. Word problems involve using mathematical operations and concepts to solve real-life situations. By translating the information provided in the problem into mathematical equations and expressions, we can find the solution. This process helps us apply mathematical principles to practical scenarios and develop problem-solving skills. Therefore, mathematics is the correct answer as it is the subject that deals with the translation and application of English words in word problems.

Explanation
Unknown numbers are typically represented by variables in mathematics. Variables are symbols that can represent any unknown quantity or value. They are used to create algebraic expressions and equations, allowing for the manipulation and solving of mathematical problems. By using variables, we can generalize mathematical relationships and find solutions that apply to a wide range of specific numbers or situations. Therefore, representing unknown numbers with variables is a fundamental concept in mathematics.

Explanation
Pythagoras is known for his contributions to the field of mathematics, particularly for his theorem in geometry known as the Pythagorean theorem. This theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. Pythagoras' theorem is fundamental in various mathematical applications and has significant implications in geometry, trigonometry, and even physics. Therefore, Pythagoras is widely recognized as a prominent figure in the history of mathematics.

Explanation
Maths is taught to students in school because it is a subject that requires structured learning and practice. Schools provide a conducive environment for students to learn and understand mathematical concepts, as well as interact with teachers and peers for guidance and support. The curriculum and resources in schools are specifically designed to facilitate the teaching and learning of mathematics. Additionally, schools offer a systematic progression of mathematical topics, ensuring students receive a comprehensive education in this subject.

Explanation
The sign for addition is represented by the plus symbol (+). It is used to indicate the operation of combining two or more numbers to find their total or sum. The plus sign is commonly used in mathematics and is easily recognizable as a symbol for addition.