Answers: 3
Mathematics, 21.06.2019 21:30
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
Mathematics, 21.06.2019 23:00
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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Mathematics, 21.06.2019 23:30
Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.
Answers: 1
Mathematics, 22.06.2019 00:30
If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height
Answers: 1
Solve:4x+3y=20;4x+2y=10 by matrix method...
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