Answer:
72 gallons
Step-by-step explanation:
we know that
19 units represent 228 gallons
so
using proportion
Find out how many gallons represent 6 units
Let
x ---> the number of gallons for 6 units
X^2 -8x + 13 =0
x^2 -8x = -13
x^2 - 8x +16 = - 13 + 16
(x - 4)^ = 3 That is the first option shown.
Answer:
totoy bilat yan po ung sagit
Step-by-step explanation:
mo maitim
Answer:
B. The charge per kilowatt-hour.
Step-by-step explanation:
We have been given that an electric company charges a certain rate per kilowatt-hour of electricity used and an administrative fee of $3.50. The company charged Zhao $63.25 for using 800 kWh of electricity.
The equation represents the total amount of bill charged by electricity comapany to Zhao for 800 kilowatts of electricity use.
Since total bill is $63.25, administrative fee is $3.50 and total use of electricity is 800 kilowatts, therefore, r represents the charge per kilowatt hour and option B is the correct choice.