inductive resoning problems

gail

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Oct 8, 2012
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1
can you help with the sequence of these probelms=
1. 360, 180, 120, 90, then what 2 come after
2. 1/8, 2/7, 1/2, 4/5, then what are the next two
3. -5, 3, -2, 1, -1, 0 the what two
 
can you help with the sequence of these probelms=

1. 360, 180, 120, 90, then what 2 come after...............................Check the difference of the consecutive numbers in the sequence

2. 1/8, 2/7, 1/2, 4/5, then what are the next two

3. -5, 3, -2, 1, -1, 0 the what two................................................Look up Fibbonaci's sequence.

.
 
It's not easy to help people who say nothing about their situation.

Where are you stuck, on each of these? In other words, what have you tried or thought about so far? What is your math class currently working on?

Also, we prefer that you begin a new thread for each exercise's discussion. More information about posting may be found in our Forum Guidelines. Please be complete, when requesting help.

Cheers. :cool:
 
1/8, 2/7, 1/2, 4/5,

what are the next two

This exercise has a lot to do with pattern recognition.

Note the progression of the denominators: 8,7,2,5

It would be nice, if that 2 were a 6 instead. Then we'd have a clear progression: 8,7,6,5

Can you think of a way to get a 6 down there?

If so, replace the 1/2 with your rewritten ratio, and then look at the progression of the numerators. :cool:
 
Hello, gail!

Here are the first two . . .


Find the next two terms of the sequence.

1. 360, 180, 120, 90 . . .

We have:

. . \(\displaystyle \begin{array}{ccccc} 360\,\times\,\frac{1}{2} &=& 180 \\ 180\,\times\,\frac{2}{3} &=& 120 \\ 120 \times \frac{3}{4} &=& 90 \\ 90 \times \frac{4}{5} &=& \color{red}{72} \\ 72 \times \frac{5}{6} &=& \color{red}{60} \end{array}\)



2. 1/8, 2/7, 1/2, 4/5 . . .

We have:

. . \(\displaystyle \begin{array}{ccc} \frac{1}{8} \\ \frac{2}{7} \\ \frac{3}{6} &=& \frac{1}{2} \\ \frac{4}{5} \\ \color{red}{\frac{5}{4}} \\ \frac{6}{3} &=& \color{red}{2} \end{array}\)
 
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