Melissa buys 2 1/2 pounds of salmon and 1 1/4 pounds of swordfish. she pays a total of $31.25, and the swordfish costs $0.20 per pound less than the salmon. what would be the combined cost of 1 pound of salmon and 1 pound of swordfish? a. $15.60 b. $15.80 c. $16.60 d. $16.80

We are required to find the cost of 1 pound of salmon and 1 pound of swordfish

The cost of 1 pound of salmon and 1 pound of swordfish is $16.60

let

cost of a pound swordfish = x

cost of a pound salmon = y

x = y - 0.20. (1)

2.5y + 1.25x = 31.25. (2)

Substitute x = y - 0.20 into (2)

2.5y + 1.25x = 31.25

2.5y + 1.25(y - 0.20) = 31.25

2.5y + 1.25y - 0.25 = 31.25

2.5y + 1.25y = 31.25 + 0.25

3.75y = 31.5

y = 31.5 / 3.75

y = 8.4

Recall,

x = y - 0.20. (1)

x = 8.4 - 0.20

x = 8.2

Therefore, the cost of a pound swordfish, x is $8.2 and cost of a pound salmon, y is $8.4

Total cost of 1 pound of salmon and 1 pound of swordfish = $8.4 + $8.2

= $16.6

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a. 74 degrees

step-by-step explanation:

because the lines through the side and the box in the corners shows that these are congruent triangles and since they are mirrored the 37 degrees is also mirrored so the answer is 37 * 2 which is 74.

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.