a tree casts a shadow 27meters long.a nearby by post that is 5 meters tall casts a shadow 3 meters long. how tall is the tree? (
hint: set up proportion to solve)
2 answers:
5 x 27=135
3 x x= 135
135/3=45 = lenght of tree
Answer:
The tree is 45 meters high.
Step-by-step explanation:
Drawing this out will make it much easier.
In the figure, 3 is proportional to 27, and 5 is proportional to the missing side (x).
Insert the figures into an equation and solve:
3/5 * 27/x
Cross multiply:
3(x)= 27(5)
3x=135
135/3=x
x=45
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