How much water should we add to 20 kg of seawater to change its concentration from 3% to 2%?
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Mathematics, 09.11.2019 17:31 kmsg2000
How much water should we add to 20 kg of seawater to change its concentration from 3% to 2%?
explain
Answers: 2
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Explain how you can use the associative property to evaluate (7x50)x4.
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He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?
Answers: 1
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Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.
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