Answer:
See method below.
Step-by-step explanation:
m/n + n/3 = 2
2/m + n = 4
First eliminate the fractions by multiplying the first equation by 3n:-
3m + n^2 = 6n...........(1)
and the second equation by m:-
2 + mn = 4m..............(2)
Now we solve using substitution:-
From equation (2):-
4m - mn = 2
m = 2 / (4 - n)
Now substitute for m in equation (1):-
6/ (4 - n) + n^2 = 6n
6 + n^2(4 - n) = 6n(4 - n)
6 + 4n^2 - n^3 = 24n - 6n^2
n^3 - 10n^2 + 24n - 6 = 0
This will not factor so we could solve this using graphical software.
To find the values of the variable m we substitute the found values of n into one of the original equations and solve for m.
Answer:
Step-by-step explanation:
(1,3) and (-2,-6)
Answer:
$24
Step-by-step explanation:
a= $30-$12 = 6 cup of coffee
= 18÷6
= 3 (price for a cup of coffee)
= 3×2
= $6
a= $30-$6
a= $24
Answer:
J
Step-by-step explanation:
Find the common ratio r of the geometric sequence then multiply a term by r to obtain the next term
r = 
= 
= - 
The next 3 terms are
× - = - 
- × - = 
× - = - 
