Answer:
$5.50
Step-by-step explanation:
Answer:
r represents the rate the electric company charges per kilowatt-hour.
Step-by-step explanation:
r represents the rate the electric company charges per kilowatt-hour.
Total charged to Zhao was 63.25 out of which 3.50 is administrative charge (fixed).
- Total charge consists of "administrative charge" + "charge per kilowatt hours*hours used
- The equation is given as 63.24 = 3.5 + 800r
<u>Matching the "word equation" with "mathematical equation", we see that 800 is the hours used and r is the charge per kilowatt hour.</u>
Total charge
[(30×1.5)+(10.5×1.5)]+100%=60.75
100%=60.27
So total charge is
(30×1.5)+(10.5×1.5)+100%=121.50
Answer:
68m squared or the first option
Step-by-step explanation: