At the fish counter, salmon was selling for 9.60 a pound, white fish for 7.20 a pound, swordfish for 8.40 a pound and haddock for 6.90 a pound. Sasha bought 3/4 pound of fish 5.40 what fish did he choose?

Answer 1

Let's assume Sasha bought x pounds of salmon.
So, the cost of x pounds of salmon is 9.60x.
Similarly, the cost of white fish and swordfish would be 7.20(3/4 - x) and 8.40(3/4 - x) respectively.
Since the total cost is 5.40, we can write the equation:
9.60x + 7.20(3/4 - x) + 8.40(3/4 - x) = 5.40.
Expanding the equation, we get:
9.60x + 5.40 - 7.20x + 6.30 - 8.40x = 5.40.
Combining like terms, we have:
-5.00x + 11.70 = 5.40.
Subtracting 11.70 from both sides of the equation:
-5.00x = 5.40 - 11.70,
-5.00x = -6.30.
Dividing both sides by -5.00:
x = -6.30 / -5.00,
x = 1.26.
Since Sasha can't buy negative pounds of fish, we conclude that Sasha bought 1.26 pounds of salmon.
Therefore, Sasha chose to buy salmon at the fish counter.