Answer:
-8g + 16 + 12t
Step-by-step explanation:
multiply 4 with -2g
multiply 4 with 4
multiply 4 with -3t
Answer:
probably a B.
Step-by-step explanation:
Make them all have the same denominator
32
25+12 16/32+488/32+124/32+38/32+25/32
Add all of the numerators... to get 691/32+1184/32
1875/32
Simplify to get 58 19/32
Answer:
1.774
Explanation:
Before we begin, remember the following rules:
logₐ(a) = 1
log(ab) = log(a) + log(b)
Now, for the given:
log₈(40) = log₈(5*8)
= log₈(5) + log₈(8)
= 0.7739 + 1
= 1.7739 which is approximately 1.774
Hope this helps :)
Answer:
dx/dt = 4c - 4x/15
Step-by-step explanation:
a. Find a formula for the rate of change in the amount of salt, dx/dtdx/dt, in terms of the amount of salt in the solution
Let c be the concentration of the incoming brine in grams per liter. Since it flows in at a rate of 4 liters per minute, the mass flow in is thus 4m.
Let x be the mass of salt present at time, t. The concentration of salt present at time, t is thus mass of salt/volume of tank = x/15. Since the well mixed solution is drained at 4 liters per minute, the mass flow out is thus 4x/15.
The net rate of change of amount of salt dx/dt = mass flow in - mass flow out
dx/dt = 4c - 4x/15
