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Sagot :
Answer: 54 pounds
Step-by-step explanation:
1. Adressing the variables:
x=number of pounds of type A
y=number of pounds of type B
2. Equations:
x+y=147 pounds
5.15x+4.1y=659.40
3. Subsitution:
y=147-x =>5.15x+4.1(147-x)
4. Solve:
5.15x+602.7-4.1x=659.4
=> 1.05x=56.7 => x=54
5. Solution:
x=54; y=93
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