Two students participated in a fund-raiser. Each sold a combination of pencils and notebooks. The first student sold 2 pencils and 8 notebooks for a total of $17. The second student sold 10 pencils and 3 notebooks for a total of $11. Find the price of each item.
Write a system of equations (two equations), and define the variables also.
x=
y=
1)
2)
9 POINTS! Please help!

Question

27-10-2015
Mathematics

contestada

Two students participated in a fund-raiser. Each sold a combination of pencils and notebooks. The first student sold 2 pencils and 8 notebooks for a total of $17. The second student sold 10 pencils and 3 notebooks for a total of $11. Find the price of each item.
Write a system of equations (two equations), and define the variables also.
x=
y=
1)
2)
9 POINTS! Please help!

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TSO TSO · Answer 1 · 2015-10-27T16:00:26+01:00

TSO TSO

27-10-2015

2x + 8y = 17
10x + 3y = 11

We need to solve the system of equations.

x = pencils
y = notebooks

If we solve by graphing, we get the answer:

One pencil costs 0.50 dollars
One notebook costs 2.00 dollars

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