Elementary Algebra Review Part 26

In this Elementary Algebra Review, the lesson focuses on writing and solving equations about percents and percent discounts based on word statements. The transcript demonstrates how to solve problems involving 18% of a number, 12% of a number, and finding the original cost of an item after a 25% markup. The lesson provides multiple methods of solving the equations, including using decimals, fractions, and common sense to check if the solutions make sense.

Writing and solving equations about percents and percent discounts based on word statements.

• How do you write and solve an equation about percents and percent discounts based on a word statement?
• The number 9 is 18% of what number?
• How do you write a word statement as an algebraic equation?
• How do you solve 9 = .18*n?
• How do you solve percent word problems?
• How do you check a percent word problem solution?
• How can you write and solve an equation to find out what number is 12% of 75?
• How do you define a variable, write an equation, solve, and check your answer to a percent discount word problem?
• If a store buys a purse, marks it up 25%, and sells it for $40, what was the original cost of the purse?
• If C + .25C = 40, what does C equal?