Im doing this homework and i have already a bad grade! i have no idea what to do or how to do it the teacher already ezplained i to me and everything and i still dont get it can anyone help?
2007-01-27 12:13:30 · 3 answers · asked by alwaysluckykitty 2 in Science & Mathematics ➔ Mathematics
I am not sure what you are talking about but this would be my best guess:
If a pole is 36 feet tall, and its shadow is 12 feet long, how long would the shadow be for a pole that is 72 feet tall? You would set this up as a proportion 12ft shadow over 36 feet tall equals x over 72 feet tall. That is, 12/36=x/72. Then, you cross multiply. 12 * 72 = 864, 36 * x = 36 x. Then you have 864 = 36x. Solve for x. 864/36 = 24. Therefore, x = 24. So, the shadow for a 72 foot pole would be 24 feet long. Another way to look at the problem is that the shadow is 1/3 the height. So, 72/3 = 24.
2007-01-27 12:26:50 · answer #1 · answered by anifak 2 · 0⤊ 0⤋
What is it that you don't get? You need to be more specific!
2007-01-27 12:19:14 · answer #2 · answered by smarties 6 · 0⤊ 0⤋
can u be more specific so people can help you?????????????????
2007-01-27 12:27:20 · answer #3 · answered by adolfo 2 · 0⤊ 0⤋