Mathematics, 18.10.2020 16:01, anaishindsp07emm
52. Break-Even Audra wants to establish a lemonade stand on her corner. Her father buys some lumber and other materials and makes Audra a lemonade stand for $40 . Audra goes to the store and buys ingredients for lemonade. She determines that each cup of lemonade will cost her $0.03 to make, but the actual cup will cost her an additional $0.07. She decides to sell the lemonade for $0.30 a cup . (a ) Find the revenue function R, treating the number of cups of lemonade r as the independent variable. (b) Find the cost function Ctreating the number of cups of lemonade x as the independent variable. (c) Graph the revenue and cost functions in the same Cartesian plane . (d ) Find the break -even number of cups of lemonade that Audra must sell. What are the revenue and cost at this number of cups of lemonade Label the point on the graph drawn in part ( c).
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Mathematics, 22.06.2019 02:20, jdkrisdaimcc11
The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?
Answers: 2
52. Break-Even Audra wants to establish a lemonade stand on her corner. Her father buys some lumber...
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