Answer:
(x,y)=(1,3)
Step-by-step explanation:
3x+4y=15_(i)
x_3y=_8_(ii)
subtracting both equations equation (ii) multiplying by 3
3x+4y=15
3x_9y=_24
13y=39
y=39/3
y=3
putting the value of y in equation (i)
3x+4y=15
3x+4×3=15
3x+12=15
3x=15_12
3x=3
x=3/3
x=1
(x,y)=(1,3)
<span>0.05714285714 hope this helps you</span>
Answer: a) 59049, b) 15120, c) 126.
Step-by-step explanation:
Since we have given that
5 digit sequences from the integers 1,2,...9.
a) the digits can be the same.
Repetition is allowed.
So, Number of ways to form 5 digit sequences would be
b) the digits cannot be the same and the order in which they appear matters.
Repetition is not allowed and order is maintained, so we will use "Permutation":
c) the digits cannot be the same and the order in which they appear does not matter.
Repetition is not allowed and order is not maintained, so we will use "Combination":
Hence, a) 59049, b) 15120, c) 126.