((n-2)×180)/n = 156
(n-2)×180=156n
24n =360
n =15
360/n =36
n = 10
a)15 b)10
Answer:
x=0, y=-5
Step-by-step explanation:
The system is
(1) 5x+3y=-15
(2) -8x-2y=10
Let's solve it by elimination. In order to do it, you have to multiply the equations by suitable numbers in such a way that when you add the 2 equations, one of the unknowns is eliminated
Multiply (1) by 2 and (2) by 3
(1) 10x+6y=-30
(2) -24x-6y=30
Add the two equations
10x-24x+6y-6y=-30+30 ----> -14x=0---->x=0
Now replace this value in any equation, for example in (1)
6y=-30 ----> y=-30/6----> y=-5
Answer:
10.756 esa seria la respuesta
Step-by-step explanation:
Answer: C. 27% of men like woody fragrances, and 45% of the people who like citrus fragrances are women
Step-by-step explanation:
Here, Given table,
Citrus Fruity Woody
Men : 27 21 18
Women : 22 26 15
Thus, The percentage of men like woody fragrances
= 
= 
= 
= 27.2727..... %
≈ 27 %
Now, The percentage of men like woody fragrances
= 
= 
= 
= 44.8979591837 %
≈ 45 %
Thus, Option C is correct.
Answer:
Future value A = P(1+r)^(t)
A = 27000(1+0.065)^1
A = 27000(1.065)
A = 28755 units
Corrected question;
The price of a new Ford F-150 has increased by 6.5% this year. If the price was 27,000 last year, which expression can be used to calculate the price of the new Ford this year
Step-by-step explanation:
Applying the future value formula;
A = P(1+r)^(t) .....1
Where;
A = final amount/value
P = initial amount/value (principal)
r = rate yearly
t = time in years
Given;
P = 27,000
r = 6.5% = 0.065
t = 1 year
Substituting the given values;
So A = 27000(1+0.065)^1
A = 27000(1.065)
A = 28755 units
