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Elle went to pet smart and bought 4 goldfish and 4 turtles for $28. Later that day, warren went to pet smart and bought 6 goldfish and 1 turtle for $17. How much does 1 goldfish cost?.

Sagot :

The cost of one goldfish in the pet smart is $2

Let

x = cost of a goldfish

y = cost of a turtle

Elle went to pet smart and bought 4 goldfish and 4 turtles for $28. Therefore,

Elle total cost:

4x + 4y = 28

Warren went to pet smart and bought 6 goldfish and 1 turtle for $17. Therefore,

Warren total cost:

6x + y = 17

Let's combine the equation.

4x + 4y = 28

6x + y = 17

Multiply equation(ii) by 4

4x + 4y = 28

24x + 4y = 68

20x = 40

x = 40 / 20

x = 2

6(2) + y  = 17

12 + y = 17

y = 17 - 12

y = 5

Therefore, the cost of one goldfish is $2.

learn more on systems of equations here: https://brainly.com/question/267703?referrer=searchResults

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