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.

An equation to find the cost t, in dollars, of a tetra is 8 t + 2 t + 6 = 37.

B.

The cost of 4 tetras is the same as the cost of a rainbow fish.

C.

Reducing the number of rainbow fish by 1 would result in a total cost of $28.50.

D.

An equation to find the cost r, in dollars, of a rainbow fish is 8 r + 2 (r + 6) 37.

E.

One rainbow fish plus 5 tetras cost $21.

Question

Mathematics

Shiloh Rollins

25 May, 07:27

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.

An equation to find the cost t, in dollars, of a tetra is 8 t + 2 t + 6 = 37.

B.

The cost of 4 tetras is the same as the cost of a rainbow fish.

C.

Reducing the number of rainbow fish by 1 would result in a total cost of $28.50.

D.

An equation to find the cost r, in dollars, of a rainbow fish is 8 r + 2 (r + 6) 37.

E.

One rainbow fish plus 5 tetras cost $21.

+3

Answers (1)

Know the Answer?

Danna · Answer 1

C, D, and E

Step-by-step explanation:

When trying to solve for the cost of each item you will find a rainbow fish is $8.50 and a tetra is $2.50. If you use that information to solve the other answer choices C, D, and E would be correct