Answer:
The answer is 9.
Step-by-step explanation:
m = 5
n = 4
m + n
(5) + (4) = 9
The first two rows of coefficients are identical, so by inspection, the determinant is 0.
4n/5-4/7=64/35
4n/5-20/35=64/35
4n/5=84/35
4n=12
n=3. Hope it help!
Answer:
P=3T-50
Step-by-step explanation:
Form the given four values we can assume a linear relationship between profit and the no of tickets sold.
Let the equation corresponding to that be some P=aT+b.
Now substitute the first set of values(100,50) in the above equation we get
100=50a+b.
Now substituting second set of values (100,250) we get 250=100a+b.
Let these equations be eq1 and eq2.
Now substract eq1 from eq2 we get 50a=150 or a=3.
Substitite value of a in one of the equations we get b=-50.
∴P=3T-50
Answer:
30x
Step-by-step explanation: