Solving Rational Equations (6.5-6.7)

Six divided by the sum of a number and 4, minus the quotient of 5 and the difference of the number and 4 is equal to the quotient of 1 and the difference of the number squared and 16.

To estimate the number of households that own a dog, 250 people were surveyed. Of those polled 180 said they owned a dog. Based on this information, how many households out of 10,000 would you expect to own a dog?

Three painters take 4 days, 6 days, and 9 days to finish a project. If they work together, how quickly can they finish the project? Choose the correct equation. DO NOT SOLVE.

A boat moves 10 miles upstream in the same amount of time it moves 18 miles downstream. If the rate of the current is 4 miles per hour, find the rate of the boat in still water.

If y varies directly as x, and y=20 when x=5, find the direct variation equation for the situation.

Find the variation equation for the following statement:

c varies directly as b and inversely as the square of d, and c=6 when b=4 and d=8.

Suppose y varies inversely as the square of x. If y=7 when x=6, find y when x=3.