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Question 171591: In a list of numbers,the first is 2,the second is 7,and each subsequent number is the sum of all the preceding numbers.What is the fifth number in the list.
If the 100th number in the list is x,what is the 103rd number in the list?
The sum of two numbers is 19.If 5 times the smaller number is 3 less than twice the larger number,what are the numbers?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In a list of numbers,the first is 2,the second is 7,and each subsequent number is the sum of all the preceding numbers.What is the fifth number in the list.
List the numbers: 2,7,9,16,25
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If the 100th number in the list is x,what is the 103rd number in the list?
Good question.
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The sum of two numbers is 19.5 If 5 times the smaller number is 3 less than twice the larger number,what are the numbers?
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Equations:
x + y = 19
5x = 2y-3
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Rearrange:
x + y = 19
5x-2y = -3
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5x + 5y = 95
5x - 2y = -3
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7y = 98
y = 14
Then x = 5
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Cheers,
Stan H.
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