Answer:
The simplified form of given expression is 3/5.
Step-by-step explanation:
The given expression is

We need to find the product of two factions using diagram.
For 3/4, draw a box and divide it in 4 equal parts by using vertical lines. The color three parts of it.
For 4/5, draw a box and divide it in 5 equal parts by using horizontal lines. Then color the four parts of it.
Now combined both boxes and shown below.
From the below figure it is clear that
The number of common shaded small boxes = 12
Total number of small boxes = 20
The required fraction is


Cancel out common factor.

Therefore, the simplified form of given expression is 3/5.
Answer:
He can make eight 3-pancake servings.
Step-by-step explanation:
6 eggs make 12 pancakes.
12 eggs make 24 pancakes.
24 divided by 3 is 8.
Answer:
Each inspectors NEEDS to work 20 hours in order to review 320 cars.
Step-by-step explanation:
The amount of time taken to inspect 1 car = 1/2 hr = 0.5 hr
The total people in crew are supposed to be 10
But 2 people are MISSING.
So, the total number of present people in crew = 10 - 2= 8
The total number of cars to be inspected = 320 cars.
Since each car takes 0.5 hour to be reviewed.
So, the time required to review 320 cars = 320 x 05 = 160 hours.
So, the total hours needed to inspect all 320 cars = 160 hours
Now,as there are total 8 crew members.

Hence , each inspectors NEEDS to work 20 hours in order to review 320 cars.
Marginal product is defined as the incremental change in output that occurs due to a change in the input signals.
It is calculated on two steps:
1- Find the change that occurred to the outputs
2- Divide this change by the additional inputs
For the problem we have here:
Step 1:
old output = 100 dumplings
new output = 175 dumplings
change that occurred = 175 - 100 = 75
Step 2:
This change occurred as a result of adding 1 worker
Therefore:
marginal product = 75/1 = 75
Answer: (b)
It depends on how much they are selling there cookies for and also who has more cookies.