SOLUTION: Standard Lumber has 8 foot and 10-foot two-by-fours. if Aaron bought 90 two-by-fours with a total length of 844 feet, how many were 8 feet long?
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Question 619782: Standard Lumber has 8 foot and 10-foot two-by-fours. if Aaron bought 90 two-by-fours with a total length of 844 feet, how many were 8 feet long? Answer by ewatrrr(24785) (Show Source):
Hi,
Standard Lumber has 8 foot and 10-foot two-by-fours.
if Aaron bought two-by-fours with a total length of 844 feet,
how many represented by were 8 feet long?
Question states***
8x + 10(90-x) = 844ft
-2x = -56
x = 28 were 8ft long
CHECKING our Answer***
28·8ft + 62·10ft = 224ft + 620ft = 844ft