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Posted by **liz** on Sunday, December 4, 2011 at 12:11pm.

- 8th grade math -
**Anonymous**, Sunday, December 4, 2011 at 12:15pm6 / 9 = 100 / x Multiply both sides with x

6 x / 9 = 100 Multiply both sides with 9

6 x = 9 * 100

6 x = 900 Divide both sides with 6ž

x = 900 / 6

x = 150 ft

OR

9 / 6 = 1.5

x / 100 = 1.5 Multiply both sides with 100

x = 1.5 * 100

x = 150 ft

- 8th grade math -
**MathMate**, Sunday, December 4, 2011 at 1:52pmor using proportions and cross multiply:

6:9

100:?

? = 100*9/6=150

- 8th grade math -
**amy**, Monday, December 10, 2012 at 3:38pmA tree and a building stand side by side. The 5-foot tall tree casts a shadow of 12 feet. If the building is 80 feet tall, how long is its shadow?

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