Answer:

Step-by-step explanation:
We are given that
Volume,V=250 L
Mass of salt=m=40 g
Brine containing 1 g per liter
Pumped into the tank at the rate=5 L/min
We have to find the number A(t) of grams of salt in the tank at time t.
Rate of change of salt in the tank
Rate in-Rate out
Rate in=5 L/min
Rate out=
L/min



Using the formula

A=40 and t=0


Substitute the value









Answer:
100 centimeters
Step-by-step explanation:
Area of a square is side x side= s x s or s²
If s² = 1 square meter
s = √1 = 1 meter
Each side is 1 meter. To convert to centimeters multiply by 100 since there are 100 centimeters in 1 meter.
Each side is 100 centimeters
Answer:
the answer is b on oddesseyware
Step-by-step explanation:
Answer:
B. Reflection
Step-by-step explanation:
The answer should be
c) (-2,5)
It is the only point that falls on the line and when you count the units from (-7,2) to (-2,5) it is 5 units and when you count the distance from (3,8) to (-2,5) you also get 5 units, proving that (-2,5) is in the middle of the line.