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After filling your bird feeders, Barbara has 3 1/2 cups of mixed birdseed left. The two bird feeders in the front yard took 4 1/2 cups each. The two feeders in the backyard each took 2 3/4 cups. The two feeders next to the living room window each took 3 1/4 cups. How many mix bird seed did Barbara have before filling the bird feeders?

Answer :

esgrindell
a series of multiplying and adding all the bird feeder quantities
2(4.5)+2(2.75)= (9)+(5.5)=14.5 cups add the remaining bird seed of 3.5

14.5 +3.5= 18 cups at the beginning

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