Mr. Allen spent $40 for 6 movies. If each movie is the same price, how much would he have to spend for 24 movies?
2 answers:
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Two angles are complementary if their sum is 90°, they are supplementary if their sum is 180.
With this definition, you can easily check all the couples:
So, the couple 47-33 is not complementary nor supplementary, the couple 130-50 is supplementary.
The couple 110-x is supplementary, and we want x=70, so that
Similarly, The couple x-30 is complementary, and we want x=60 so that