SOLUTION: two types of tea costing k650/kg and k720/kg respectively are blended in the ratio 7:3.calculate the cost of 1kg of the blended tea.

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Question 1007159: two types of tea costing k650/kg and k720/kg respectively are blended in the ratio 7:3.calculate the cost of 1kg of the blended tea.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
%287%2F10%29650%2B%283%2F10%29720 k units of cost. Just check how the units will work in this expression, and then compute it.

cost=itemCount%2Aprice

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Trying again but including shown units:

The ratio shows the ONE part of the 1 kg cut into 7+3=10 parts. This is 7%2F10 kg of the 650 k/kg tea and 3%2F10 kg of the 720 k/kg tea. Now account for the requested cost of the two teas.
%287%2F10%29%28kg%29%28650%29%28k%2Fkg%29%2B%283%2F10%29%28kg%29%28720%29%28k%2Fkg%29----compute this cost.