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Kipish [7]
3 years ago
9

Kevin Kangaroo begins hopping on a number line at 0. He wants to get to 1, but he can hop only 1/3 of the distance. Each hop tir

es him out so that he continues to hop 1/3 of the remaining distance. How far has he hopped after five hops? Express your answer as a common fraction.
Social Studies
1 answer:
VLD [36.1K]3 years ago
3 0

Answer:

\frac{211}{243}

Explanation:

This is called a series, to solve it you need to give the first hop which is going to move you 1/3 of the way, the you hop another time, this will move you 1/3 of the 2/3 missing, this means you have moved now:

\frac{1}{3}+ \frac{\frac{2}{3}}{3} =\frac{1}{3}+ \frac{2}{9}=\frac{5}{9}

and you are missing 4/9 of the way.

Next hope will move you 1/3 of the 4/9 missing, which is \frac{\frac{4}{9} }{3} = \frac{4}{27}, adding this to the path you have already moved is:

\frac{5}{9}+ \frac{4}{27} =\frac{19}{27}

and you are missing 8/27 of the way.

The fourth hop is the same, one third of the missing path:  \frac{\frac{8}{27} }{3} = \frac{8}{81}, and adding this to the traveled path:

\frac{19}{27}+ \frac{8}{81} =\frac{65}{81}

and you are missing 16/81 of the way.

The last and fifth hop is again one third of the missing path: \frac{\frac{16}{81} }{3} = \frac{16}{243}, and adding this to the already moved way:

\frac{65}{81}+ \frac{16}{243} =\frac{211}{243}

And you end here.

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