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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

Sagot :

luana
[tex]x-cost\ of\ fudge\\y-cost\ of\ bubble\ gum\\\\ \left \{ {{5x+3y=5.7\ |\cdot-2} \atop {2x+10y=3.6\ |\cdot5}} \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[/tex]
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