In Problems 47–60, find the domain of each function f (x)= 4/√x-4

How much coffee beans worth Php 50 a kilogram should be added to 60 kilograms of coffee beans worth php 75 a[..]

A housewife wishes to mix coffee beans worth Php 60 and Php 85 a kilogram to obtain50 kilograms of coffee beans[..]

A man has a 50 kilograms mixture that is 1/3 cement and 2/3 sand. How much of a mixture that is half cement and half[..]

A caregiver earns php 150,000 a month in the united states of america. He spends 5 % of his income for foodd, 10%[..]

The speed of a motor boat in still water is 60 kph. It goes 100 kilometers up the river and then comes the 10[..]

A businessman invested part of php 2,000,000 at 12% and the rest at 15% . If both investments gave him php 250,000[..]

The age of a man is 10 years more than three times his brother's age. Find the age of each if 5 years from now he[..]

If a child were four times his present age, he would be half as old as his father is now. If his father is 30 years[..]

A man is five times as old as his brother. Fifteen years later he will be twice as old. how old are the two men now?