Molly works at a sea water filtration plant. She is working with two salt water storage cylinders as shown below. 2 If you know that x(0)-10kg y (0)-8kg 烹 Molly sets the storage cylinder pump settings as follows: The salt water is pumped from storage cylinder 1 to storage cylinder 2 at 101 per minute and it is pumped from storage cylinder 2 to storage cylinder 1 at 10 L per minute. Molly knows that storage cylinder 1 has 50 liters of salt water in it and that storage cylinder 2 has 25 liters of salt water in it. Assuming that the salt and water is mixed perfectly in each tank and that x is the amount of salt in kg in storage cylinder 1 after time (t) minutes has passed and y is the amount of salt in kg in storage cylinder 2 after time (t) minutes has passed; Help Molly determine the quantity of salt in each storage cylinder after t minutes. x(t)= y (t)=

1. If rxty = +1 and rx2y = -1, can you tell what happens to rxy when we combine x1 and x2 into a new variable? Make and provide your own data for your demonstration.

15) Find SR E S H R 2x - 14 F 艹 x+2 D

3. Solve. Vx - 11 + 7 = 19 Student's Work Student's Answer A. x = 15 B. x = 18 %3D C. x = 21 %3D D. x = 155 me dioW ainebule 241S 12 + 4. Given f(x) = 4x + 8 and g(x) = x² + x; find (f o g)(-5) %3D