Answer:
the first one
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
4 is the total right and 5/7 make it half so it will be 1/2. hope this helps!
Its A. x=4
procedure: 3*equation1 - 2*equation2 ⇒ x=4
Answer:
-6
Step-by-step explanation:
Take a couple of differences and see:
11 -17 = -6
5 -11 = -6
The common difference is -6.
Answer: The waiting time will be 32 minutes when 240 people in line.
Step-by-step explanation:
Let us assume that the waiting time is directly proportional to the number of people in the queue.
Equation of direct proportion between variables x and y : 
Put
to find
.

Hence, the waiting time will be 32 minutes when 240 people in line.