Kevin bought fish at a grocery store at $5.  per pound for salmon and $3.00 a pound for catfish.  He spent a total of $36.60 on salmon and catfish.  If Kevin bought a total of 10 pounds of salmon and catfish at the grocery store, how many pounds of each did he buy?

I think its that Kevin bought 3.3 lbs of salmon and 6.7 lbs. of catfish..

Step-by-step explanation:

because

x+y=10

5x+3y=36.60

3x+3y=30.00

2x=6.60

x=3.3

y=6.7

hope i helped you! :) <3

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629