1.A positive integer is twice another. The sum of
the reciprocals of the two positive integers is . Find the two integers.
2.A positive integer is twice another. The
difference of the reciprocals of the two positive integers is Find the two integers.
jog twice as fast as he can walk. He was able to jog the first 9 miles to his
grandmother’s house, but then he tired and walked the remaining 1.5 miles. If
the total trip took 2 hours, then what was his average jogging speed?
4.A bus averages 6 miles per hour faster than a
trolley. If the bus travels 90 miles in the same time it takes the trolley to
travel 75 miles, then what is the speed of each?
5.Allison can complete a sales route by herself in
6 hours. Working with an associate, she completes the route in 4 hours. How
long would it take her associate to complete the route by herself?