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user100 [1]
2 years ago
7

Albert bought 9 pounds of fish at a grocery store at $5 per pound for salmon and $3 per pound for catfish. He spent a total of $

37 on the salmon and catfish. This can be represented using the following system of equations:5s +3c = 37 s + c = 9 How many pounds of salmon did Albert purchase?
Mathematics
1 answer:
zalisa [80]2 years ago
7 0

Answer:

5 pounds

Step-by-step explanation:

  • To find that we simply solve the system of equations
  • So make c the subject of the formula of equation 2
  • s+c=9\\c=9-s
  • Substitute in equation 1
  • 5s+3c=37\\5s+3(9-s)=37\\5s+27-3s=37\\5s-3s+27-(27)=37-(27)\\2s=10\\s=5 so that's 5 pounds of salmon
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