JER816ANSWERS

=__MEAN MEDIAN MODE .__= The mean is the average .. To get the mean you have too add all the numbers together. Then divide the sum by the number of pieces of data. Ex. 4,1,5,7,6, 4 + 1 + 5 + 7 + 6 23 x 5 115

=**__The median the number in the middle of the data.__**=

If there are two middle numbers, you add them up and divide the sum by 2. Ex. 5,10,35,35,41, 35 + 5 = 40 35 ÷ 2 = 33

=__**The mode is the number that appears the most.**__=

Ex. 4,5,7,4,8,5 .. > the number FOUR shows up the most.

Make sure you arrange the numbers into numerical order ..//**
 * //Question . Create a set of numbers for your parents to calculate. Find the mean, median, and the mode for the following set of data. ( 5,5,6,7,4,3 )

PERFECT SQUARE//** ..... a square that has a whole number for all the same sides.
 * //SQUARE ROOT
 * //SQUARE ROOT//** ...... a whole number multiplied by itself


 * //1. What is the square root of 72 ?//**

64 72 81 8 x 8 8. 9 x 9 numerator: 72 - 64 = 8 denominator: 81 - 64 = 17 72 is 8 and 8/17

=**__PERCENTS__**=

IT IS NOT THE SAME BECAUSE ..... 10% of $175 175 / 100 = 1.75 x 10 17.5 175 - 17.5 = $157.5 w/ 15% off 157.5 divided by 100 = 1.575 x 15 23.62 157.5 - 23.625 = 134.07 = $134.07 but taking off 25% is ... 25% of $175 175 / 4 = 43.75 175 - 43.75 = 131.25 = $131.07 10% w/ 15% $134.07 25% off $131.07 So, it's not the same ...
 * //Is taking 15% off a given item and then taking off an additional 10% off the already reduced price the same as taking off 25% on the original price ? why or why not ?//**

=**__2 ratio proportion questions:__**=

1. Nick saves 30 dollars out of every 100 dollars he earns from his job - Use fractions to solve this problem 0.30 x 85 = 25.5 / 1 25.5 2. 5 CD's cost $30 Jackie is going to get 10 CD's, how much is it going to cost ? - Use a ration table to solve this problem