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Setler79 [48]
3 years ago
7

Pat was in a fishing competition at lake Pisces. She caught some bass and some trout. Each bass weighed 3 pounds. Each trout wei

ghed 1 pound. Pat caught a total of 30 pounds. She got 5 points in the competition for each bass, but since trout are endangered in lake Pisces, she lost 1 point for each trout. Pat scored at total of 42 points. How many bass and trout did pat catch during the competition?
Mathematics
1 answer:
erastova [34]3 years ago
7 0

Answer:

9\ bass  and  3\ trout

Step-by-step explanation:

Let

x-----> the number of bass

y----> the number of trout

we know that

3x+y=30 ----> equation A

5x-y=42 ----> equation B

Adds equation A and equation B

3x+y=30\\5x-y=42\\--------\\3x+5x=30+42\\8x=72\\x=9\ bass

Find the value of y

3(9)+y=30

y=30-27=3\ trout

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