Homework Help: physics

Posted by Ann on Friday, January 20, 2012 at 12:02am.

PLEASE HELP ME SOLVE !!!!
InMay 1998, forest fires in southernMexico
and Guatemala spread smoke all the way to
Austin. Those fires consumed forest land at a
rate of 26900 acres/week.
On the average, how many square meters
of forest are burned down every minute? An
acre is an area equivalent to that of a rectangle
60.5 yd wide and 80 yd long, there are 36
inches in one yard, and there are 2.54 cm in
one inch.
Answer in units of m2/min

physics - drwls, Friday, January 20, 2012 at 6:28am
Convert 26,900 acres/week to
_____ m^2/minute

1 acre = 4840 yard^2 (from the information given).
Multiply that by 9 ft^2/yd^2,and you get
= 43,560 ft^2 x 144 in^2/ft^2
= 6,272,640 in^2 x (2.54)^2 cm^2/in^2
= 40,468,564 cm^2
= 4046.9 m^2

1 week = 10,080 minutes

[26,900 acres/week / 10,080 min/week] * 4046.9 m^2/acre = ______ m^2/min

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