math - so confused can you help me
posted by Brandon on .
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
plug your way down as follows. In the last line you will get A then work back up.
A + B = 21 so B = 21 - A
B + C = 32 so C = 32 -21 +A = 11 + A
C + D = 32 so D = 32 - 11 - A = 21 -A
D + E = 37 so E = 37 -21 + A