Alex buys 2 rulers and 2 rubbers for £3.Alex buys 3 rulers and 4 rubbers for £5.75.Work out the cost of one ruler and one rubber.
Question
Solution 1
To solve this problem, we can use a system of linear equations.
Let's denote: R = cost of one ruler E = cost of one eraser (rubber)
From the problem, we have the following two equations:
2R + 2E = 3 (equation 1) 3R + 4E = 5.75 (equation 2)
We can simplify equation 1 by dividing by 2, which give Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
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