Answer: 4 V
Step-by-step explanation:
The formula for electrical power
is:

Where:
is the water heater electrical power
is he water heater voltage
is the electrical resistance
Isolating
:


Hence:

Answer:
23x-5
Step-by-step explanation:
20x - 2-3 + 3x) in simpilfy is it 23x5
For this case we have a function of the form:

Where:

We must find the value of the function when
. Substituting:

Thus, the value of the function is 2 when 
Answer:

Answer:
1 and 1/30 gallons
Step-by-step explanation:
First, convert all the fractions to a common denominator. I'm choosing 30.
1/3=10/30 1/5=6/30 1/2=15/30
Now, you can add them together to get 31/30, so a little more than a gallon