Answer:
x=1
y=-4
Step-by-step explanation:
Since -x-3=y subsitue that in at the top equation




Plug x=1 back into the equation to solve for y.


Answer:
1 A, 2c, 3A,
4 P= 2(6x-1) + 2(2) P=12x +2
Step-by-step explanation:
Answer:
7 units
Step-by-step explanation:
count
Answer:
60
Step-by-step explanation:
Angles 1 and 2 are supplementary, which means that their sum is 180 degrees.
180 - 120 = 60
Angle 1 is 60 degrees
<u>Answer: </u>
clerk A and clerk B can simultaneously stock a shelf in
minutes
<u>Explanation:</u>
Let the first clerk be A and the second clerk be B
A can stock a shelf in 20 min
B can stock a shelf in 45 min
Consider the complete work to be W
A’s rate of stocking =
per minute
B’s rate of stocking =
per minute
When, A and B work simultaneously, rate of work done = 
Total work done simulatenously = 
=
Therefore, clerk A and clerk B can simultaneously stock a shelf in
minutes