Mathematics, 18.02.2020 18:00 amaraea
Water enters a lake at the rate of 2 cubic kilometers per day. Water evaporates from the lake at the rate of 1.2 cubic kilometers per day, and the dam at the end of the lake regulates the flow so that the volume in the lake stays at a constant 245 cubic kilometers. The water entering the lake contains 2.9 tons of salt per cubic kilometer, and the water leaving the lake is well mixed. The differential equation for the amount of salt in the lake, measured in tons, with time measured in days, is. a) Q' = 8.41 - 0.00 163 Q b) Q' = 8.7 - 0.00816 Qc) Q' = 4.2 - 0.0049 Qd) Q' = 5.8 -0.00327 Q
Answers: 2
Mathematics, 21.06.2019 16:00, isabellemaine
Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v
Answers: 2
Mathematics, 21.06.2019 22:50, kaylarojascliff
On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table
Answers: 1
Mathematics, 22.06.2019 00:00, omar2334
Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?
Answers: 1
Water enters a lake at the rate of 2 cubic kilometers per day. Water evaporates from the lake at the...
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