Let the smaller number be x
x+x+7=63
2x+7=63
2x=56
x=28
28+7=35
The two numbers are 28 and 35
Solve by elimination ie eliminate x or y from the equations by performing operations on them.
first label the equations , to follow the process.
x - y = 5 ----------------(1)
x+ y = 3 ----------------(2)
If (1) and (2) are added then y will be eliminated.
(1) + (2) gives : 2x = 8 → x = 4
now substitute this value of x into either of the 2 equations and solve for y.
let x = 4 in (1) : 4 - y = 5 → -y = 1 → y = -1
check in (1) : 4-(-1) = 4+1 = 5
check in(2) : 4 - 1 = 3
So your answer is x = 4 , y = -1
The Nth term of the sequence is
T(n) = 2 + 4n or <em>2 (2n + 1)</em> .
Well SI= PXRXT
_____
100
AND so since its in months ...you will have to divide by 12 ...caz 12mths = 1yr
sooo....5200x8.9x30
-------------------
100 x 12
and your answer will be
$1157.00
UNDERSTAND?
