Question

Anna bought 8 tetras and 2 rainbow fish for her aquarium. The rainbow fish cost​ $6 more than the tetras. She paid a total of​ $37. Which of the following are​ true? Select all that apply.
A. Reducing the number of rainbow fish by 1 would result in a total cost of​ $28.50.
B. An equation to find the cost​ r, in​ dollars, of a rainbow fish is 8r+2(r+6)=37 .
C. An equation to find the cost​ t, in​ dollars, of a tetra is 8t+2t+6=37.
D. The cost of 4 tetras is the same as the cost of a rainbow fish. E. One rainbow fish plus 5 tetras cost​ $21.

Answer 1

B. an equatationto find the cost r in dollars, of a tetra is 8t+2t+6=37.

Answer 2

Answer:

let the cost of tetras fish be X

then cost of 1 rainbow fish will be 6+X

As Per question

2×(6+X)+ 8×x = 37

12 +2x + 8x = 37

10x = 37-12

x = 2.5

So In this way the correct option is B and E

PlZZ mark as brainlist