Mathematics, 11.10.2019 21:10 1315055427
Atank contains 400 l of fluid in which 50 g of salt is dissolved. brine containing 2 grams of salt per liter is pumped into the tank at a rate of 5 l/min. the well-mixed solution is pumped out at the same rate. (a) find the number aſt) of grams of salt in the tank at time t. (b) what is the concentration c(t) of the salt in the tank at time t? (c) at what time is the concentration of the salt in the tank two times the initial concentration?
Answers: 2
Mathematics, 21.06.2019 20:30
Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.
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Mathematics, 21.06.2019 21:00
Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?
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Mathematics, 21.06.2019 22:30
The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)
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Mathematics, 22.06.2019 02:00
Estimate the time en route from majors airport (area 1) to winnsboro airport (area 2). the wind is from 340° at 12 knots and the true airspeed is 136 knots. magnetic variation is 5° east.
Answers: 2
Atank contains 400 l of fluid in which 50 g of salt is dissolved. brine containing 2 grams of salt p...
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