Bailey, Jeremiah, and Maggie are buying school supplies. Bailey buys 2 pens and 6 pencils and spends a total of $7.00. Jeremiah buys 3 pens and 5 pencils and spends a total of $7.50. How much will Maggie spend to purchase 4 pens? *
3 points

Here we have to solve a system of linear equations in three variables. Let:

x: Cost of pens

y: Cost of pencils

We know that:

Multiplying eq1 by 3 and eq 2 by -2:

Then adding these two resultant equations:

How much will Maggie spend to purchase 4 pens?

Each pen costs $1.24, so 4 pens will cost:

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