Tommy invited some friends from school and several cousins to see a movie for his ninth birthday party. Each school fired is 9 years old. Each cousin is 11 years old. None of his cousins attend his school. If the sum of the ages of Tommy, his friends, and his cousins is 122, how many of Tommy's school friends and how many cousins attended the movie?
Please, don't tell me the answer, just tell me how to solve it. I don't want to cheat.
Another:
Find the greatest whole number that meets all the following conditions:
a. It is greater than 100.
b. It is less than 200.
c. It is 20 greater when rounded to the nearest 100 than when rounded to the nearest 10.
Once again, don't tell me the answer, just tell me how to solve it. After all, what would I learn if I cheated? This question might be on my SAT's, and then I wouldn't know how to work it out. So remember, just tell me how to solve it!
Please and Thank You!!
^.^
2007-02-07
10:40:57
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7 answers
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asked by
Ironica
2