X + 2y = 12
7x + 2y = 0 Subtract:-
-6x + 0 = 12
x = -2
Substituting in first equation:-
-2 + 2y = 12
2y = 14
y = 7
Solution is x = -2,y = 7
the answer i got is 13.125
idk how this would make sense (no pun intended)
232 rounded to the nearest tenth is 230
Answer:
45 years
Step-by-step explanation:
Let the sum be x and CI=2x
We know that
CI=P(1+100R)T
2x=x(1+100R) ^15
(1+100R)^15=2
Let m be the number of years.
Therefore,
x(1+100R)m=8x
(1+100R)m=23
(1+100R)m=[(1+100R)^15]3
From eqn(1)
(1+100R)m=(1+100R)45
On comparing both power, we get
m=45 years
For this case we have the following expression:

The first thing you should know for this case, is that by power properties we have:
Every number raised to zero is equal to unity.
We then have to rewrite the expression:
Answer:
The given expression is equal to:
option 4.