Answer:
(3, -1)
Step-by-step explanation:
The easiest way to solve this system of equations is by elimination:
3x + y = 8
2x - y = 7
Add the two equations together:
(3x + 2x) + (y - y) = (8 + 7)
5x = 15
x = 3
Substitute x back into the equation:
2x - y = 7
2(3) - y = 7
6 - y = 7
- y = 1
y = -1
The fourth option, (3, -1)
Answer:
13. 8 cm
Step-by-step explanation:
For the fifth sharpshooter to win, her average should be at most 3.4 since the best so far is 3.5.
so the equation would be
(3.2+x)/5=3.4
3.2+x=3.4×5
3.2+x=17
x= 17 - 3.2
x= 13.8
Answer:
***The balance after 4 years is $3738.23***
Step-by-step explanation:
The amount in a continuously compounded account is given by:
where P=$3000 is the principal, r=5.5% is the annual interest rate and t=4 years.
We substitute these values to obtain:
This will evaluate to:
Rounding to the nearest cent, we get: $3738.23