Question 1175996: Find the cost of painting the outer surface of a closed rectangular tank 3.6 m long, 2.5 m wide and 2 m deep
with paint at 75 cents per square
Found 3 solutions by ewatrrr, ikleyn, josgarithmetic:
Answer by ewatrrr(24785)   (Show Source):
You can put this solution on YOUR website!
Hi
 .
w = 2.5m, l = 3.6m, h = 2m
Surface = 2lw + 2lh + 2wh
S = 2(3.6)(2.5) + 2(3.6)(2) + 2(2.5)(2) = 18 + 14.4 + 10 = 42.4m^2
75ยข/square meter yes
cost of painting the outer surface = 42.4*.75/m = $31.80
Wish You the Best in your Studies.
Answer by ikleyn(52784)  (Show Source):
You can put this solution on YOUR website! .
Find the cost of painting the outer surface of a closed rectangular tank 3.6 m long, 2.5 m wide and 2 m deep
with paint at 75 cents per square
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Why @ewatrr introduces square yards and converts square meters to square yards,
remains a mystery for me.
The problem does not mention square yards.
To be honest, it does not mention square meters, too,
making if UNDEFINED the true unit of the price of the paint.
I'd say that it is not possible to formulate the problem as the visitor does in this case,
as well as it is not possible to solve the problem in the way as @ewatrrr does it.
Answer by josgarithmetic(39617)  (Show Source):
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