SOLUTION: The price of a cucumbers has changed from 89 cents to $1.29 cents in the past 5 years and the price of plastic bags has changed from 8 cents to 5 cents. Find the index numbers that

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: The price of a cucumbers has changed from 89 cents to $1.29 cents in the past 5 years and the price of plastic bags has changed from 8 cents to 5 cents. Find the index numbers that      Log On

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Question 1023761: The price of a cucumbers has changed from 89 cents to $1.29 cents in the past 5 years and the price of plastic bags has changed from 8 cents to 5 cents. Find the index numbers that would represent the change in the respective prices over these 5 years and interpret their meaning
Answer by Edwin McCravy(20081) About Me  (Show Source):
You can put this solution on YOUR website!
1:8::4:_? 
[Note that the word "fraction"
contains the word "ratio"]

fRAcTIOn 

Change the ratios to fractions, 
and the :: to an equal sign:

1%2F8+=+4%2Fx

Cross-multiply:

1%2Ax+=4%2A8

x=32

----------------

6:2::8:_?

6%2F2+=+8%2Fx

6%2Ax+=8%2A2

6x=16

x=16%2F6

x=8%2F3

Edwin