Answer:
900
Step-by-step explanation:
V=πr2h
3.14 x 11= 34.54
34.54 x 2= 69.08
69.08x 13= 898.04
898.04 rounded to nearest hundreth is 900
If Ann can build the model in 3 hours, then in 1 hour she gets 1/3 of it done. Likewise, if Sam can build the model in 6 hours, then in 1 hour he gets 1/6 of it done. We are looking to find how long it takes when they combine their efforts, so we will add the two together and set it equal to 1/x, x being the number of hours it takes for both of them to get the whole job done. The equation then looks like this:
. You will have to find the common denominator to add those fractions, and once you do, cross multiply to solve for x.
The answer is C.
Hope this helps! :))
Answer:
17/13
Step-by-step explanation: