To buy a car, Jessica borrowed $15,000 for 3 years at an annual simple interest rate of 9%. Rate of interest is the percent charged or earned Simple Interest I = P r t Time that the money is borrowed or invested (in years) Principal is the amount of money borrowed or investedġ3 Additional Example 1: Finding Interest and Total Payment on a Loan
Simple interest is one type of fee paid for the use of money. When you deposit money into a savings account, you are paid interest. If she needs 50% of the vote to win, how many of the undecided voters must vote for Maggie for her to win the election? 3ġ1 Vocabulary interest simple interest principal rate of interestġ2 When you borrow money from a bank, you pay interest for the use of the bank’s money. A poll revealed that 40% of her classmates have decided to vote for her, 32% have decided to vote for her opponent, and 7 voters are undecided. What is the percent of increase from 0.32 to 0.64? 37.8 16 % 2 3 375 100%ĩ Problem of the Day Maggie is running for class president. What is the percent of decrease from 144 to 120? 3.
Pre-Algebra 8-7 More Applications of Percents Warm Up 1.
Algebra 1 spiral review answer key how to#
Learn to relate decimals, fractions, & percents (8-1) Learn to find percents (8-2) Learn to find a number when the percent is known (8-3) Learn to find percent increase and decrease (8-4) Learn to estimate with percents (8-5) Learn to find commission, sales tax, and withholding tax (8-6) Learn to compute simple interest (8-7)ĥ Learning Goal Scale Students are able to determine & construct fractions, decimals, & percents:Ĥ 3 2 1 Clear understanding their relationships Able to solve for the unknown Understands how to solve for increase & decrease Calculating solving sales tax/total cost contextual problems Computing simple interest Understands their relationships Some solving for the unknown Difficulty solving for increase & decrease Difficulty solving for the unknown Some understanding their relationships Even with help, no understanding or skill demonstratedĨ-7 More Applications of Percents Warm Up Problem of the Day Lesson Presentation Pre-Algebra
Pre-Algebra HOMEWORK #18-23 & Spiral Review (#24-30)ģ Our Learning Goal Students will be able to determine and construct fractions, decimals, and percents by understanding their relationships, solving for the unknown, solving increase and decrease, solving sales tax/total cost contextual problems and compute simple interest.
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