Linear Equations – An Overview A linear equation is an algebraic equation with an equality sign and highest exponent of the variable is 1. Equality sign (=) divides the equation into two sides such as LHS and RHS. In a linear equation highest exponent of the variable is 1. The standard form of a linear […]
Read More →Decimal Multiplication by Power of 10 Multiplying decimal numbers by 10, 100, 1000…… Multiply any decimal by any power of 10 or 10, 100, 1000, we just move the decimal point towards the right as many places as the number of zeros in the power of 10. When we multiply any decimal by 10, we […]
Read More →Volume of Right Circular Cone In figure A is called vertex, AO is height, OC is radius, and AC is slant height of cone. The height, radius, and slant height of the cone are usually denoted by h, r and l respectively. Volume of Right Circular Cone V = 1/3𝜋r2h […]
Read More →Subset Find the subsets of the following sets. (i) {a}, (ii) {a, b}, (iii) {a, b, c}, (iv) {p, q}, (v) {p, q, r}, (vi) {1,}, (vii) {1, 2, }, (viii) {1, 2, 3}, (ix) {1, 2, 3, 4}, Answer: (i) {a}, ∅ (ii) {a}, {b}, {a, b}, ∅ (iii) {a} , {b}, {c}, {a, […]
Read More →Proportion word problems 1. Cost of 5 pens is $25 and cost of 10 pencils is $50. What is more expensive? Solution. Ratios of number of pens and pencils whose cost is $25 and $50 respectively, is […]
Read More →Simple Interest: Definition, Examples and Formulas What is interest? First lets understand what is Interest. When we borrow money from a bank, we must pay a fee in addition to the amount borrowed. The extra money we pay is known as the interest. Interest is an additional amount of money that is paid by the […]
Read More →Problems – Solutions – Profit and Loss – Formulas Important Facts The cost price is the price at which a product orservice is purchased by seller. The selling price is the price at which a product or service is sold to the buyer. When the selling price (SP) is greater than cost price(CP) […]
Read More →Interior & Exterior angle of a polygon In this lesson we will learn the, (1) Solutions of problems on interior and exterior angles of a polygon. Example 1: Find the sum of all interior angles in a regular triangle (3-sided). Solution: Step 1: Write the formula Sum of interior angles of a polygon = (n-2) […]
Read More →Worksheet – Solving Equation Solve the below equations 1. 2x + 6 = 4x – 8 2. 7x + 3 = x + 63 3. 3x + 75 = 8x + 15 4. 12x – 18 = 10x + 8 5. x + 9 = 7x – 18 Answer of the worksheet 1. 7 2. 10 3. 12 […]
Read More →Complement of a Set Definition: The complement of a set A, is set of all elements of universal set, which are not the elements of A. Let U be the Universal set and A is subset of U, then the “Complement of A” is set of all elements of U which are not the elements of A. […]
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