Answer:
400
Step-by-step explanation:
20=8 s0
20x50=1000
50x8=400
7.5 km/h
Step-by-step explanation:
Let's assign the speed of Jerry in still air as <em>x </em> (in km/h)
Let's assign the speed of the wind as <em>y </em>(in km/h)
With the wind as Jerry’s back, he takes 10 minutes to get to the library. We can create the following equation. (<em>we are converting the minutes to hours by dividing by 60</em>);
2.5 / (x + y) = 10/60
10x + 10y = 150
x + y = 15
With the wind against Jerry, he takes 15 minutes from the library. We can create the following equation;
2.5 / (x-y) = 15/60
15x – 15y = 150
x – y = 10
We can now solve the simultaneous equation by subtraction;
x + y = 15
x – y = 10
2y = 5
y = 5/2 = 2.5
y = 2.5 km/h
x = 7.5 km/h
Learn More:
brainly.com/question/8046928
#LearnWithBrainly
Answer:
do you have a graph or anything to show?
Step-by-step explanation:
Answer:
24 customers per hour
Step-by-step explanation:
The service rate is given by the demand of customers per hour per employee divided by the labor utilization.
If there are two service counter employees on duty, the demand of customers per hour per employee is:
Assuming a 75% labor utilization, the service rate is:
Answer: (x, y) —> (-x, y)
Step-by-step explanation:
This is because the translation rule for reflection across the y-axis is (x, y) —> (-x, y)
