Karteikarten
***Ratios, Rates. and Proportion Study Cards (7th Grade)
Karten in diesem Stapel (26)
- 1Ratiosa comparison of two quantities (written as fractions)
- 2Ratios #2Ratios can only form a proportion if they are equivalent.
- 3Equivalent Ratiosratios that can be simplified to exactly the same value
- 4Equivalent Ratios #2Equivalent ratios are equal to each other.
- 5How to Check if Two Ratios Form a Proportion (or are Equivalent):Check to see if the cross products are equal.
- 6If Two Ratios are Equivalent:1) a divided by b = c divided by d
2) Both ratios have the same simplified value.
3) The cross products are equal. - 7Ratesa comparison of two quantities with units (usually has something to do with change)
- 8Unit Ratethe basic rate that all the other rates are equivalent to
- 9Unit Rate #2The unit rate keeps the rate of change constant.
- 10Unit Rate #3The denominator is always 1, and they all have a common denominator.
- 11Equivalent Ratesrates that represent the same value, but look different
- 12Equivalent Rate #2The equivalent rate looks different, but has the same value.
- 13Equivalent Rate #3The equivalent value has either the numerator or the denominator unknown.
- 14Equivalent Rate #4For the equivalent rate, the basic rate stays the same, but has new conditions.
- 15Rate Tablesummary of all the equivalent rates in a table
- 16Rate Table #2All the rates in a rate table are equivalent and can be used to write problems.
- 17Rate Table #3Since all the rate tables are equivalent, and can be used to write proportions, the rate table represents a proportional relationship.
- 18Independent Variableinput, x
- 19Dependent Variableoutput, y
- 20Variablea place holder
(EX: m, n, x, v) - 21Constantstands alone
- 22Coefficiantmultiplies a variable
(EX: 2x, 3n, 4m, 8d
the number before the variable) - 23***Proportional Relationship EquationDependent Variable = Unit Rate x Independent Variable
OR
**** y = cx **** - 24Percent Proportionpart/whole = x/100
- 25Percent Proportion #2The ratio of part of a number to the whole number is equivalent to the ratio of the percent value to 100.
- 26Percentsa ratio of a number to 100
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- Ratios, Rates. and Proportion Study Cards (7th Grade) by Irene Kim *** = VERY IMPORTANT
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