Question

Jena and matt, working together, can mow the lawn in 44 hours. working alone, matt takes four times as long as jena. how long does it take jena to mow the lawn alone?

Answer 1

Let jena take x hours to mow the lawn on her own.-  then we can write the equation 

1/x + 1/4x = 1 / 44

44 + 11 = x  

x = 55

x takes 55 hours to mow the lawn