Permutations/417821: Suppose that you have six different vegetables in the refrigerator. In how many ways can you choose four of them to put into your salad? 1 solutions Answer 292495 by marcovan(4) on 2011-03-05 17:42:49 (Show Source):
Permutations/417733: There are 10 buses. In how many ways can 5 people be assigned to each vehicle if they have to ride on different buses? 1 solutions Answer 292453 by marcovan(4) on 2011-03-05 10:14:57 (Show Source):
10x9x8x7x6
---------- = all of the bottom cancels out
5x4x3x2x1
That leaves you with 10x9x8x7x6 = 30,240 permutations.
Evaluation_Word_Problems/417575: I need some help with deciding if the given number is a solution to the given equation and I am not sure how to know.
3x +7 = 21; 4
Thanks :O) 1 solutions Answer 292337 by marcovan(4) on 2011-03-04 17:44:53 (Show Source):
You can put this solution on YOUR website! 3x+7=21
Isolate variable by subtracting 7 from both sides
3x+7=21
-7=-7
3x=14
divide both sides by 3
3x/3=14/3
x=14/3 therefore 4 is not a solution
check:
3(4)+7=21
12+7=21
19 does not equal 21 so therefore 4 is not a solution
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on 2011-03-05 17:42:49 (