841ASanswers

=Here are my answers :=

Find the __mean, median, and mode__ for the following set of numbers : 8, 4, 3, 3, 5, 7 3, 3, 4, 5, 7, 8 Mean 3 + 3 + 4 + 5 + 7 + 8 30 / 6 = **5** Median 3, 3, 4, 5, 7, 8 ... 4+5 9/2 = **4.5** Mode= **3, 3,** 4, 5, 7, 8

__Square roots__

1) 21 16 (4x4) .. 21 .. 25 (5x5) 16-25 = 9 21-16=5 sqrt of 21 is 4 and 5/9

2) 7 4(2x2) .. 7 .. 9 (3x3) 9-4 = 5 9-7=2 sqrt of 7 is 2 and 2/5

3) 88 81 (9x9) .. 88 .. 100 (10x10) 100 - 81 = 19 88 - 81 = 7 sqrt of 88 is 9 and 7/19

__Percent__

It is NOT the same. Pretend the price was $82.00 __15% then 10%__ $82 / 100 = 0.82 pr 1% 0.82 x 15= $12.30 or 15 % $82 - $12.30 = $69.70 $69.70 / 100 = 0.697 or 1% 0.697 x 10 = $6.97 $69.70 - $6.97 = $62.73

__25%__ $82 / 4 = $20.50 or 25% $20.50 x 3 = $61.50

__Ratio and Proportion__

1) Miles/Minutes 110/60 110 x 7.__27__ = 800 60 x 7.__27__ = 436.__36__ it will take 7.__27__ hours to drive 800 km/h

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