A) 6x -5y = 5
B) 3x + 5y = 4
Adding the equations:
9x = 9
x = 1
A) 6*1 -5y = 5
A) 6 - 5 = 5y
A) 5y = 1
y = 1/5 = .2
Answer:
B and C
Step-by-step explanation:
Answer:
A: the answer would be 1 i think for part b: 6 part C:72 part D:36 and part E :72
Step-by-step explanation:
hope this helps i think im right im not 100% sure but that is kinda confusing
Answer:
5040 ways
Step-by-step explanation:
In solving this problem we will use the method of permutations.
The formula for permutation is
nPr = n!/(n-r)!
Back to our question, we are required to choose 4 digits out of 10 digits. Now in solving this:
The number of ways of selecting 4 digits from 10 digits
= 10P4
= 10!/(10-4)!
= 10!/6!
= 10x9x8x7x6!/6!
= 5040 ways
Note that 6! on the numerator cancels out 6! On the denominator.
Answer:
21.42
Step-by-step explanation:
