3 A shop sells notebooks at x dollars each and pens at y dollars each. A customer buys 3 notebooks and 4 pens for \$19.40. Another customer buys 5 notebooks and 2 pens for \$20.60. Form a pair of simultaneous equations in x and y, and find the price of one notebook.

MA-801

Simultaneous equations by elimination

Lower Sec Maths · Secondary 2 · Hard · Simultaneous equations by elimination

3 A shop sells notebooks at

x

dollars each and pens at

y

dollars each.
A customer buys 3 notebooks and 4 pens for \9.40. Another customer buys 5 notebooks and 2 pens for \$20.60.
Form a pair of simultaneous equations in

x

and

y

, and find the price of one notebook.

\$3.11
\$2.90
\$3.40
\$3.60

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