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15) a tree casts a shadow 21 ft while Enzo who is 5 ft tall casts a shadow 6 ft long. (with picture)

15) a tree casts a shadow 21 ft while Enzo who is 5 ft tall casts a shadow 6 ft long-example-1

1 Answer

5 votes

Set up a ratio between the tree and Enzo.

5 ft / 6ft = x/21 ft.

Cross multiply:

(5 x 21) = (6 x x)

Simplify:

105 = 6x

Divide both sides by 6:

x = 105 / 6

x = 17.5 feet tall.

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