Posted by **Kate** on Saturday, October 25, 2008 at 6:51pm.

The local fish market is having a sale on whole fish. the prices are as follows:

You can buy an albacore and a barracuda for$21

You can buy a barracuda and a carp for $32

You can buy a carp and a dogfish for $32

You can buy a dogfish and an eel for $37

You can buy an eel and flounder for $31

You can buy a flounder and a gar for $25

You can buy gar and an albacore for $26

Determine the cost of each individual fish

- See reply to Brandon above -
**Damon**, Saturday, October 25, 2008 at 8:45pm
I gave a method a few minutes ago.

- algebra - Help! -
**UNknown Guy**, Thursday, March 8, 2012 at 7:28pm
Price list:

Albacore $12

Barracuda $9

Carp $15

Dogfish $17

Eel $20

Flounder $11

Gar $14

Proof: Call the fish A-G and make all the prices into simple addition equations.

Add all the numbers and equations together. You get:

2(A+B+C+D+E+F+G) = 196.

And thus,

(A+B+C+D+E+F+G) = 98

After that, add together the first, third, fifth, and seventh equations.

(A+B+C+D+E+F+G+A) = 110

And then subtract the last two equations I've written from each other, leaving...

A = 12.

After that, it's a matter of simple addition i know this is late

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