Volunteers helped clean up 8.2 kg of trash in one neighborhood and 11 1/2 kg in another. They sent 2 3/5 kg to be recycled and threw the rest away. How many kilograms of trash did they throw away?

Correct answer:

m =  17.1 kg

Step-by-step explanation:

m1=8.2 kg m2=1112=11 2+12=232=11.5 kg r=235=2 5+35=135=2.6 kg  m=m1+m2r=8.2+11.52.6=17110=17110 kg=17.1 kg

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