Answer:
8/20 in simplest form this would be 2/5
Step-by-step explanation:
Subtract any number from the next one.
-1 - (-6)
4 - (-1)
9 - 4
14 - 9
All of the above subtractions give the same answer.
That answer is the common difference.
Since a^2 - b^2 = 1, the value of y = 1 because x=1 and 1^2 - 1^2 = 0
Answer: 8:15 P.M.
Step-by-step explanation: 3:35 plus a total of 4 hours and 40 minutes
3:35 --- 7:35 ( +4 hours )
7:35 --- 8:15 ( +40 minutes )
Let's assume two variables x and y which represent the local and international calls respectively.
x + y = 852 = total number of minutes which were consumed by the company (equation 1)
0.06*x+ 0.15 y =69.84 = total price which was charged for the phone calls (Equation 2)
from equation 1:-
x=852 -y (sub in equation 2)
0.06 (852 - y) + 0.15 y =69.84
51.12 -0.06 y +0.15 y =69.84 (subtracting both sides by 51.12)
0.09 y =18.74
y= 208 minutes = international minutes (sub in 1)
208+x=852 (By subtracting both sides by 208)
x = 852-208 = 644 minutes = local minutes
