Josiah wrote:Hi! After today I should have more time to spend on forum stuff. And, as I mentioned in my latest news post, my school start date got pushed back till Thursday (plus, since all my classes are Mon, Tue, Wed, I don't even have to go to class at all next week, just do some online stuff) so that means even more free time.
A little help for Saber...
Two trees of heights 20m and 30m have ropes running from the top of one to the bottom of the other. How high above the ground do the ropes intersect?
Seems like you'd need to know how far apart the trees are...
A ladder leans against a house with its base 15 feet from the house. When the ladder is pulled 9 feet farther away from the house, the upper end slides down 13 feet. How long is the ladder?
You need to use the formulas for finding the length of the sides of a triangle in order to solve this. Keep in mind, the ladder, ground, and wall form a triangle.
A rectangular container with base 9 cm by 11 cm has a height of 38.5 cm. Assuming that water expands 10 percent when it freezes, determine the depth to which the container can be filled so that the ice does not rise above the top of the container when the contents freeze.
This is an easy one. Use the demensions in the first sentence to find the volume of the container. Then, determine what number 110% of would equal that volume (solve [1.1 x N = volume] for N). Finally, take N and determine how deep it would fill the container by itself.
Thanks so much!
The first one: That's what I thought too. I drew a diagram and inserted everything I knew, but I still can't find the answer.
The second one: Yeah, just figured it out today at school.
The third one: Thanks. I had an idea about it, but wasn't too sure. With your method, I got 3465, and 3430.35 with mine, but I really have no proof for mine. I'll check around to see what other people got.
Thanks again! I'm starting to feel a bit better about the whole thing, especially since a friend figured out one that was really bugging me and explained it to me, and a junior friend of mine who had the class 2 years ago said he'd help me. He remembered the calendar project (though it's a different set of problems now) from his time.
In other news, I'm starting to enjoy reading Tale of Two Cities more now. It's gotten more interesting, not to mention I've been listening to Les Mis in the background. That seems to help.