Answer is 15%
You have to do a proportion
12. = x
80 100 and u have to cross multiply
80x = 1200
80. 80
then divide 1200÷80=15
When common difference,
then the largest term of these four terms will be 
Let four consecutive terms of AP is,

Since, sum of all four terms is 24
So, 
And product is 945
So, 
When d= 1, -1 then largest term is 9
When
then largest term is 
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Answer: x=2 and y=-3
Because:
Substitute the second equation for 2y into the first equation
3x + 9x - 24 = 0
12x - 24 = 0
12x = 24
x = 2
3x + 2y = 0
(3x2) + 2y = 0
6 + 2y = 0
2y = - 6
y = - 3
Answer:
5=x
Step-by-step explanation:
First you use the distributive property. That will get you to: 9x+-18=27. Then you add 18 to both sides. The -18 will turn to 0. You will get: 9x=45. You want to get x by itself so you divide each side by 9. You will get x=5.