Suppose that we have two tanks ( A and B ) between which a mixture of brine flows. Tank A contains 200 liters of water in which 20 kilograms of salt has been dissolved and Tank B contains 200 liters of water in which 10 kilograms of salt has been dissolved. Fresh water is pumped into Tank A at the rate of 200 liters per hour, and brine is pumped into Tank B from Tank A at the rate of 200 liters per hour. Brine is also drained at a rate 200 liters of brine per hour from Tank B . All brine mixtures are well-stirred. Find the amount of salt in each tank at time t .

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Lab 1: central tendency and standard deviation directions: use excel to compute descriptive statistics. problem: you are the manger of a fast food store. part of your job is to report to the boss at the end of each day which special is selling best. use your knowledge of descriptive statistics and write one paragraph to let the boss know what happened today. here are the data. use excel to compute important values (mean, median, mode, and standard deviation). make sure to include a copy of your work. this should be submitted via canvas (no exceptions). make sure you include your excel work in addition to a summary of the results. special number sold cost huge burger 20 $2.95 baby burger 18 $1.49 chicken littles 25 $3.50 porker burger 19 $2.95 yummy burger 17 $1.99 coney dog 20 $1.99 total specials sold 119

How do you solve this step by step?