If a 5−foot-tall man casts a shadow that is 24 feet long, how tall is a tree that casts a shadow that is 288 feet long?
2007-07-13 09:59:59 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
will you try to use ur brain!
2007-07-13 10:13:17 · answer #1 · answered by ♥ Hello 3 · 1⤊ 0⤋
Think of it as fractions, such as 1/2 = 4/8. Now suppose you know that your two fractions are equal, like this example, but you don't know what one of the numbers is.
In this case, 1/2 = x/8.
If you multiply 1 x 8 and divide it by 2--you get the correct answer--4. (On paper, you multiply the top of the first fraction by the bottom of the second fraction, then you divide by the bottom of the first fraction.)
Your problem becomes 5/24 = x/288.
Multiply 5 x 288 and divide by 24. Your answer will be the height of the tree.
2007-07-13 10:13:54 · answer #2 · answered by smallbizperson 7 · 0⤊ 0⤋
Another proportion question:
Hint: Anytime you have 3 numbers and you are trying to find the 4th number, it is a proportion.
See my other answer for proportion rule/method:
288 X 5= 1440/24= 60
2007-07-13 10:20:13 · answer #3 · answered by Denise 3 · 0⤊ 0⤋
60 ft tall 288/4.8
2007-07-13 10:05:52 · answer #4 · answered by StPeteFL 2 · 0⤊ 0⤋
60 feet
2007-07-13 10:02:39 · answer #5 · answered by J S 4 · 0⤊ 0⤋