X + 6y = 27

- x - 9y = - 39

ANSWER :

x = 3 , y = 4

Step-by-step explanation:

x + 6y = 27 -x -9y = -39

x+6y+27

x= -6 + 27

- ( -6y + 27) _9y = -39

6y - 27 - 9y = -39

3y - 27 = -39

-3y = -12

y = 4

FOR x

x= -6 x 4 + 27

x= -24 + 27

x = 3

y=4 and x=3

Step-by-step explanation:

x + 6y = 27

-x - 9y = -39

multiply the equations with (+) to get

1st... x +(-x)

2nd 6y +(-9y)

3rd 27 +(-39)

•0 - 3y = -12

y = 4...

substitute (y=4) in eqn(i)

x + 6(x) = 27

x + 24 =27

x = 27 - 24

x = 3...

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

what are the