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melissa buys 212 pounds of salmon and 114 pounds of trout. she pays a total of $31.25, and the trout costs $0.20 per pound less than the salmon. what would be the combined cost of 1 pound of salmon and 1 pound of trout?

Respuesta :

The combined cost of 1 pound of salmon and 1 pound of trout will be;

⇒ $0.13

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Melissa buys 212 pounds of salmon and 114 pounds of trout.

She pays a total of $31.25, and the trout costs $0.20 per pound less than the salmon.

Now,

Let the cost of salmon per pound = x

Then, The cost of trout per pound = x - $0.20

Since, Melissa buys 212 pounds of salmon and 114 pounds of trout and She pays a total of $31.25.

So, We get;

⇒ 212x + 114(x - 0.20) = 31.25

⇒ 212x + 114x - 22.8 = 31.25

⇒ 326x = 31.25 + 22.8

⇒ 326x = 54.05

⇒ x = $0.17

And, The cost of trout per pound = x - $0.20

                                                    = - $0.04

So, The combined cost of 1 pound of salmon and 1 pound of trout is,

⇒ $0.17 + (-$0.04)

⇒ $0.17 - $0.04

⇒ $0.13

Learn more about the mathematical expression visit:

brainly.com/question/1859113

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