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S1 F - MATH

Study Guide for Semester Final - 7th Grade FCMS

QuestionAnswer
How do you multiply fractions? 1. Reduce if possible. 2. Multiply the numerators. 3. Multiply the denominators. 4. Reduce the fraction if needed.
How do you divide fractions? 1. Find the reciprocal of second fraction 2. Multiply numerators & denomonators 3. Reduce the fraction (if needed) 4. Double underline answer
How do you find the tax (as a percent) of an item? 1. Convert percent to decimal. 2. Multiply decimal by cost of item. 3. Double underline answer.
How do you find the discount (as a percent) of an item? 1. Convert percent to decimal. 2. Multiply decimal by cost of item. 3. Double underline answer.
How do you find the percent of a number? 1. Convert percent to decimal. 2. Multiply decimal by number. 3. Double underline answer.
How do you write a percent as a decimal? 1. Move the decimal two places to the left. 2. Double underline answer.
Define: Probability The chance that something will or will not happen.
Define: Event Something that happens.
Define: Dependent Event An event that is affected by another event.
Define: Independent Event An event that is not affected by another event.
Define: Odds The chance of getting an event correct or incorrect using numbers.
Define: Frequency How often something happens in a given amount of time.
Define: Sample Part of something
Define: Random All data has an equal chance of or of not happening in a certain frequency
Define: Random Sample A part of a set of data that has an equal chance of or of not happening in a certain frequency
Define: Outcome A possible result given a set of circumstances
Created by: jweber19