8. Equations Involving Fractions
In this section, we can find the solution easily by multiplying throughout by the lowest common denominator.
An aquarium can be filled by one hose in 7 minutes and a second thinner hose in 10 minutes.
How long will it take to fill the tank if both hoses operate together?
For 2 resistors with resistances R1and R2 in parallel, the combined resistance R is given by:
For a particular circuit, the combined resistance R was found to be 4 ohms (Ω), and R1= 10 Ω. Find R2.
A car averaged 30 km/h going from home to work and 40 km/h on the return journey. If the total time for the two journeys is 50 minutes, how far is it from home to work?