At the fish counter, salmon was selling for $9.60 a pound, whitefish for $7.20 a pound, swordfish for $8.40 a pound, and haddock for $6.90 a pound. Sasha bought 3/4

lb. of fish for $5.40. What fish did he choose?(1 point)
Responses

haddock
haddock

salmon
salmon

swordfish
swordfish

whitefish

1 answer

To determine which fish Sasha bought, we can calculate the cost of each type of fish for the amount he purchased, \( \frac{3}{4} \) lb, and see which total equals $5.40.

  1. Salmon:
    Cost per pound = $9.60
    Cost for \( \frac{3}{4} \) lb = \( 9.60 \times \frac{3}{4} = 7.20 \)

  2. Whitefish:
    Cost per pound = $7.20
    Cost for \( \frac{3}{4} \) lb = \( 7.20 \times \frac{3}{4} = 5.40 \)

  3. Swordfish:
    Cost per pound = $8.40
    Cost for \( \frac{3}{4} \) lb = \( 8.40 \times \frac{3}{4} = 6.30 \)

  4. Haddock:
    Cost per pound = $6.90
    Cost for \( \frac{3}{4} \) lb = \( 6.90 \times \frac{3}{4} = 5.175 \)

The only option that matches Sasha's total of $5.40 is whitefish.

So, Sasha chose whitefish.