SOLUTION: Good computation method to use to solve number 3 down (10 letter word) 3 Down A cheetah can run 60 miles an hour. If it could maintain that speed for half an hour, how many mi

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Question 488479: Good computation method to use to solve number 3 down (10 letter word)
3 Down
A cheetah can run 60 miles an hour. If it could maintain that speed for half an hour, how many miles could it run?
I think the answer is 30 miles, to this question, but don't know the 10 letter work for the computation method.
Answer by bucky(2189) About Me  (Show Source):
You can put this solution on YOUR website!
You are correct that the answer to the question about distance is 30 miles.
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In solving that problem, you can use a PROPORTION as follows:
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%2860%29+mi%2F%281%29+hr+=+%28x%29+mi%2F%281%2F2%29+hr%29
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You can solve this by cross multiplying and setting the products equal.
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Cross multiplying means first to multiply the numerator on the left side times the denominator on the right side. So multiply 60 (the left side numerator) times 1/2 (the right side denominator) to get 30.
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The second step in cross multiplying is to multiply the denominator on the left side times the numerator on the right side. So multiply 1 (the left side denominator) times x (the right side numerator). The product is 1x or just x for short.
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Finally, set the two products equal and solve for the unknown. So in setting the two products equal you have:
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x+=+30
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No other steps are needed because this is already the value for x.
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Notice the PROPORTION we set up has miles as the units for both the left and right side numerators and hours as the units for both the left and right side denominators. That's a check. The numerators on both sides should be in the same units and the denominators on both sides should also have units that agree as well. The location of the unknown can appear in any of the 4 locations - left numerator, left denominator, right numerator, or right denominator. It all depends on what you are trying to solve for. In this case we were trying to find the miles for 1/2 hour. So the x had to be in the numerator because we set up miles to be the two numerators. Then the x also had to be on the right side because it was related to the 1/2 hour which is the right side denominator.
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As far as the ten-letter word ... a clue is to look above for the word that is in all capital letters. (It appears twice.) I think that this is the 10-letter word you are looking for.
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Hope this helps you to understand the problem and how to solve problems that involve the 10-letter word.