Question

Anita and maria went to the candy store. Maria bought 5 pieces of fudge and 3 pieces of bubble gum for a total of $5.70. Anita bought 2 pieces of fudge and 10 pieces of bubble gum for a total of $3.60. Determine the cost of 1 piece of bubble gum

Answer 1

`x-cost\ of\ fudge\\y-cost\ of\ bubble\ gum\\\\ \left \{ {\cdot-2 \atop 2x+10y=3.6\ } \right. \\\\ \left \{ {{-10x-6y=-11.4} \atop {10x+50y=18}} \right. \\+-------\\\\44y=6.6\ \ \ \ |:44\\y=0.15\\\\Piece\ od\ bubble\ gum\ cost\ \$0.15`