Answer:
480g
Explanation:
the person above me is correct I checked the math.
480 grams
Set a proportion: if 150 cm of the copper pipe weighs 800 grams, 90 cm of the copper pipe weigh x.
Let's find x:
150 cm : 800 grams = 90 cm : x
x = (800×90)÷150 = 480 grams
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