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October 22, 2014

October 22, 2014

Posted by **b6** on Monday, January 21, 2013 at 8:57am.

x=cost of tape

meters of tape/cost

5.6/x=.8/2.5

x=17.5

I have the cost is $17.50

Is this correct?

They want us to do a check for this

I am not sure how to do the check? Can you help?

Thanks

- math -
**Reiny**, Monday, January 21, 2013 at 10:15am5.6 metres = 560 cm

each roll has 80 cm

number of rolls = 560/80 = 7

cost = 7(2.5) = 17.5

you are correct

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