Rectangular 71354

There is a rectangular plot of land in the schoolyard on which they want to sow grass. How many kg of grass seed will they need if the plot is 125 m long and 8.5 m wide? 1 kg of grass seed is needed for 25 m2.

Correct answer:

m =  42.5 kg

Step-by-step explanation:

a=125 m b=8.5 m  h=1/25=251=0.04 kg/m2  S=a b=125 8.5=22125=1062.5 m2  m=h S=0.04 1062.5=42.5 kg

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