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At an ice cream parlor, ice cream cones cost $1.10 and sundaes cost $2.35. One day, the receipts for a total of 172 cones and sundaes were $294.20. How many cones were sold?
Let assume X for ice cream cones Y for sundaes X+Y=172 X=172-Y……..* 1.10X+2.35Y=294.20 Substitute * in the above equation 1.10(172-Y)+2.35Y=294.20 189.2-1.10Y+2.35Y=294.20 1.25Y=294.20-189.2 1.25Y=105 divide both sides by 1.25 Y=84 The substitute Y value in * equation X=172-84 X=88 Therefore 88 ice cream cones and 84 sundaes were sold!!
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