Of 80 t-shirts, 10% are white, 30% are blue and the rest are red. How many are red?
2 answers:
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Answer:
4000
Step-by-step explanation:
V = 1/3(Bh) where B is the area of the base and h is the height of the pyramid
B = 20(20) = 400 h = 30
V = 1/3(400)(30) = 4000