To solve for the variable "w" you only need to use algebra to get it alone on one side of the equals sign.
$5800 at 9%
$1200 at 11%
0.09(x) = interest earned at 9%
0.11(7000-x) = interest earned at 11%
0.09(x) + 0.11($7000-x) = $654
0.09x + $770 - 0.11x = $654
$770 - $654 = 0.11x - 0.09x
$116 = 0.02x
$116/0.02 = x
$5800 = x
$5800 * 0.09 = $522
($7000-$5800) * 0.11 = $132
Answer:
x ≥ -1
y < 3
Step-by-step explanation:
Answer:
The black, green, and blue charts are all functions
Step-by-step explanation:
Slope y-intercept form is: y=mx+b
All you have to do is rearrange the equation:
2x-3y=6
2x=6+3y
2x-6=3y
now divide both sides by 3
(2x/3)-(6/3)=(3y/3)
and it becomes

x
Bonus: you can plug in any two values for x and y and you can see both equation gives the same answer!