Answer:
Total time when cost are equal = 600 minutes
Total cost = 104
Step-by-step explanation:
Given:
Plan A = costs 8 plus an additional 0.16 for each minute
Plan B = costs 20 plus an additional 0.14 for each minute
Find:
Total time when cost are equal
Computation:
Assume total time = x minutes
Plan A = 8 + 0.16x
Plan B = 20 + 0.14x
Plan A = Plan B
8 + 0.16x = 20 + 0.14x
0.02x = 12
x = 600 minutes
Total time when cost are equal = 600 minutes
Total cost = 8 + 0.16x
Total cost = 8 + 0.16(600)
Total cost = 104
Answer: There are 40 cards that x have.
Step-by-step explanation:
Since we have given that
X and y have a total of 47 cards, it is expressed as
x and z were to combine their cards they would have 126 combined, it is expressed as
y and z count there cards together and get a total of 93 cards, it is expressed as
So, solving the above three equations we get that
y = 47 - x,
z = 126 - x,
z = 93 - y
Now, we get that
Hence, there are 40 cards that x have.
Answer:
-6
Step-by-step explanation:
Answer:angle nkl is congruent to angle zwx
Step-by-step explanation: it is equal so it matches
Given: k(x) = (1/4)^x
Try x=1: k= (1/4)^1 = 1/4 => (1,1/4) Incorrect
Try x=3: k= (1/4)^3 = 1^3/4^3 = 1/64 => (3, 1/64) Incorrect
Try x=-1: k= (1/4)^-1 = (4/1)^1 = 4 => (-1, 4) Correct
Note that (1/4)^-1 = 1^-1/4^-1 = 1/4^-1 = 4^1 = 4
Answer: (-1, 4)