b) One alloy is 70% lead and 30% zinc, and another alloy is 40% lead and 60% zinc. Find the amount of each alloy needed to make 120 kg of an alloy that is 50% lead and 50% zinc (to the nearest kg).
b) One alloy is 70% lead and 30% zinc, and another alloy is 40% lead and 60% zinc. Find the amount of each alloy needed to make 120 kg of an alloy that is 50% lead and 50% zinc (to the nearest kg).
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Question
Transcribed Image Text:Chains support a crate, as shown in Fig. 5.20. The equations relat-
ing tensions T₁ and T₂ are given below. Determine the tensions to
the nearest 1 N from the graph.
T₁
0.87₁ 0.67₂ = 12
0.67₁ +0.87₂ = 68
Fig. 5.20
68 N
T,
12 N
Transcribed Image Text:b)
One alloy is 70% lead and 30% zinc, and another alloy is 40% lead
and 60% zinc. Find the amount of each alloy needed to make 120 kg
of an alloy that is 50% lead and 50% zinc (to the nearest kg).
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