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Geometry_Word_Problems/189577: The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall. If a room with a perimeter of 45 feet and 6 foot high walls requires 3 quarts of paint, find the amount of paint needed to cover the walls of two rooms that each have a perimeter of 35 feet and 6foot high walls. How many quarts are needed ( round up to the nearest quart).
1 solutions
Answer 142265 by ankor@dixienet.com(18980) on 20090404 21:35:35 (Show Source):

Polynomialsandrationalexpressions/189481: For problems 18 through 20, the height, h, of a ball t seconds after it is released for a jump shot in a basketball game can be modeled with the equation .
19. State the number of solutions to the problem and state if the ball has a chance of going into the basket.
a. There are 2 solutions, meaning 2 times when the ball is 10 ft. high. The time that the ball reaches 10 feet on its way up and on its way down. One of these times will be the ball's opportunity to pass through the hoop.
b. The equation does not allow two solutions to the problem. This ball will not reach ten feet.
c. The ball reaches ten feet as its maximum height so there is only one solution.
1 solutions
Answer 142146 by ankor@dixienet.com(18980) on 20090403 14:55:10 (Show Source):

Travel_Word_Problems/189480: This is from a worksheet given by my professor, not from a textbook.
Two bicyclists, one averaging 14 mph and one averaging 18 mph, start from the same point. The slower bicyclist arrives at the end of the course a halfhour after the other bicyclist. Find the distance of the ride. Round to the nearest whole mile.
1 solutions
Answer 142141 by ankor@dixienet.com(18980) on 20090403 13:43:20 (Show Source):

Volume/189329: This question is from textbook PreAlgebra
I am trying to find the volume of a composite figure. The figure Is a cylinder that is 3 inches in height and 3 inches in length. Attached to one end of the cylinder is a cone which is 2 inches in length. The book wants me to find the volume of the composite figure. The following is what I've tried.
V= pi(r)to the power of 2 x H.
V= pi (3)to the power of 2 x 3 + 1/2 x 4/3 pi (2) to the power of 3.
V= pi (9)(3) + 2/3 pi (8)
V= 27 pi + 16.76 pi = 43.76pi.
So the answer would of been 43.76 pi. My teacher tells me this is wrong. So, I guess I need a new method for working this problem, and information to help me understand this topic better. Can you help??
Thanks
~Ave
1 solutions
Answer 142124 by ankor@dixienet.com(18980) on 20090403 08:25:24 (Show Source):

Average/189175: I wrote prior that I can solve this but somehow it gets too much and confused and I am sure I made a mistake somewhere. Can you help me solving this?
9/(x+1)  2/(x2) = 5/(x+1) and help me to check all proposed solutions?
1 solutions
Answer 141972 by ankor@dixienet.com(18980) on 20090401 19:25:59 (Show Source):

