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OpenStudy (anonymous):
an artist is making a painting of three squares, one inside the other. He has 12 different colors to choose from. How many different paintings could he make if the squares are all different colors?
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OpenStudy (anonymous):
12*11*10=1320
OpenStudy (anonymous):
to solve the problem don't you do something along the lines of 12+11+10+9 ect.?
OpenStudy (anonymous):
no, it's multiplying not adding. and only the first 3 numbers because you have three squares. basically its 12 choices for the first square, 11 for the second, and 10 for the third.
OpenStudy (anonymous):
why do you multply?
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