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Can someone may help me with solving system of solving equations plz
A small soda costs $0.45 and a large soda costs $0.65. 35 sodas were sold for a total of $18.55. How many of each size soda were sold?
let number of small sodas sold be x # of large sodas sold be y so x + y =35 x=35 - y {equation1} now next equation 0.65x + 0.45y = 18.55 { divide all by 0.50} 1.3x + 0.9y = 37.1 { put x = 35 - y (from eq 1)} 1.3 (35 - y) +0.9y = 37.1 45.5 - 1.3y + 0.9y = 37.1 {subtract 45.5 from both sides} -0.4y = -8.4 { divide both by -0.4} y = 21 so #of large sodas sold is 21 # of small sodas sold is 35 -21 = 14
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