maths
posted by Anonymous .
A farmer needs to spread fertiliser over a paddock measuring 40m by 80m. The instuctions on the fertiliser bag say to use 80grams per square meter. How many kilograms of fertiliser will be needed?

math 
drwls
There are 3200 square meters. Multiply that by 0.080 kg/m^2. Your answer will be in kg.
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