Bob can type 2 letters in 4 hours while bill can do it in 6. how many hours would it take them, working together, to type six letters?

5 1/7 hours

Step-by-step explanation:

We're looking to calculate TIME.  In this situation the proper expression is:

              6 letters

time =

            2 letters / 4 hours  +  2 letters / 6 hours

We can divide numerator and denominator both by "2 letters" to simplify the problem:

                     3                          3 hours             3 hours

time = hours, or =

              1/4  + 1/3                     3/12 + 4/12           7/12

Invert the divisor 7/12, and then multiply:  (3 hours) (12/7) = 36/7 hours, or

5 1/7 hours

It will take these two guys 5 1/7 hours, working together, to type these 6 letters.

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

answer: yard ramps with a level off platform are typically 36 feet long. truck, rather than at an angle, enabling access to those pallets at the very back of the truck. if you are using your yard ramp to convert a loading dock into a drive-in door, we even at 60 inches (5 feet) high and a 30 foot ramp, the slope of the ramp will be less

step-by-step explanation: