three students ordered wings that cost $21 and french fries for 6$. If they split the bill equally how much did each student pay
2 answers:
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Consider the attached figure. All the triangles shown are similar, so
CB/CA = CD/CB
30/50 = projection/30
projection = 30^2/50
projection = 18
CB/CA = CD/CB
30/50 = projection/30
projection = 30^2/50
projection = 18