In a supermarket, the cost of 1 kg of pork, fish and prawns are RM 3, RM 7 and RM 13 respectively . Ronald has to buy at least 3

Question

2 years ago

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In a supermarket, the cost of 1 kg of pork, fish and prawns are RM 3, RM 7 and RM 13 respectively . Ronald has to buy at least 3

kg of pork, 1 kg of fish and 1 kg of prawn for tonight's dinner with RM 50. What is the minimum integer weight he has to carry home with the maximum spending of RM 50? How much change can he get back at the cash counter?

Mathematics

1 answer:

valkas [14] · Answer 1 · 2023-02-08T04:50:34+03:00

The amount of the change he can get back at the cash counter will be 21.

<h3>What is the linear system?</h3>

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

In a supermarket, the cost of 1 kg of pork, fish, and prawns is RM 3, RM 7, and RM 13 respectively. Ronald has to buy at least 3 kg of pork, 1 kg of fish, and 1 kg of prawn for tonight's dinner for RM 50.

Let the weight of pork be x, fist be y, and prawns be z. And let A be the amount.

Then the linear equation will be given as

3x + 7y + 13z = A

Then the amount of money if Ronald has to buy at least 3 kg of pork, 1 kg of fish and 1 kg of prawn for tonight's dinner will be

A = 3 × 3 + 7 × 1 + 1 3 × 1

A = 9 + 7 + 13

A = 29

More about the linear system link is given below.

brainly.com/question/20379472

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