Answer:
those that use both soaps= 15 households
Explanation:
From the survey households use the following:
Neither soap A nor B= 80
So those that use soap= 200- 80= 120
Only soap A= 60
So those that use only soap B or both= 120- 60= 60
For every household that used both brands of soap, 3 used only Brand B soap.
So assume out of 4 households 1/4 use both soaps, and 3/4 use soap B
Therefore those that use both soaps= (1/4)*60
= 15 households
For all the technology coming out of China today, its rural community is still very primitive. Farmers in the Western World have found ways to scientifically improve their growing techniques. Crop rotations allow for nutrient rich plants to regenerate the soil every other year. Also letting a field go fallow one years allows for recovery of soil. There are many other ways the West is improving their crops and educating new farmers in agriculture science. However, southeast Asian farmers to do not have access to this technology or sometimes computers/internet. They are using the same techniques that they have for over a thousand years. Until education is available for them or they are taught different they will continue to use the same techniques taught by their father. Even to the detriment of their land.
The fact that his school work may end up slacking or he is ambitious and will achieve what he wants to
It is a formula containing arguments. This is because a function maps the domain to its range. Argument is synonymous to domain.
Hope this helps!