Answer:
(A) - 4t
Step-by-step explanation:
5t + (t - 3) - [(7t + 5) - (8 - 3t)] =5t + (t - 3) - [7t + 5 - 8 + 3t] =
= 5t + (t - 3) - [10t -3 ] = 5t + t - 3 - 10t + 3 = - 4t
Answer:
d 5 =9^ y
Step-by-step explanation:
log9 (5) = y
If we have loga(b) =c then it becomes a^c =b
So 9^y = 5
I also think
Raise each side to the 9
9^(log9 (5)) =9^ y
That will get rid of the log9
5 =9^ y
Is this A.P ?
Please specify mate
Answer:
The answer is 170 meters
Step-by-step explanation:
hope it helps :)
9514 1404 393
Answer:
a) E = 6500 -50d
b) 5000 kWh
c) the excess will last only 130 days, not enough for 5 months
Step-by-step explanation:
<u>Given</u>:
starting excess (E): 6500 kWh
usage: 50 kWh/day (d)
<u>Find</u>:
a) E(d)
b) E(30)
c) E(150)
<u>Solution</u>:
a) The exces is linearly decreasing with the number of days, so we have ...
E(d) = 6500 -50d
__
b) After 30 days, the excess remaining is ...
E(30) = 6500 -50(30) = 5000 . . . . kWh after 30 days
__
c) After 150 days, the excess remaining would be ...
E(150) = 6500 -50(150) = 6500 -7500 = -1000 . . . . 150 days is beyond the capacity of the system
The supply is not enough to last for 5 months.
