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:

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

120 seems like the most sensible answer.

step-by-step explanation:

if there is only one topping on all caramel apples and there's 120 of them. then all apples should/will be covered in sprinkles. make sense?