Homework Help: math

Posted by nikkisopretti on Monday, February 4, 2013 at 12:58am.

East Battle Lake in Minnesota covers an area of about 1950 acres or 8.5X10^7 square feet and its average depth is about 3.2x10^1 feet. a. Estimate the cubic feet of water in the lake. (hint: Volume=area x average depth.) b. One cubic foot of water equals about 7.5 gallons. How many gallons of water are in this lake?

math - HELP HELP HELP MNHS, Monday, February 4, 2013 at 5:43am
V=(8.5x10^7)(3.2x10)=2.72x10^10
(2.72x10^10)(7.5)=2.04x10^11 gallons or 204 000 000 000 gallons

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