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Re: [obm-l] word problems



E os dois restantes, como resolver ?



Em uma mensagem de 16/3/2004 04:34:07 Hora padrão leste da Am. Sul, Faelccmm@aol.com escreveu:


2) Suppose you have a lemonade stand, and when you charge $1 per cup of lemonade you sell 60 cups. But when you raise you price to $2 you only sell 30 cups. Write an equation for the number of cups you sell as a function of the price you charge.Denote *C*; for number of cups, and *P*; for the price you charge. Assume the function in linear.


3) Given below are five statements 1, 2, 3, 4 & 5. There are 4 alternative sets of combinations of 3 statements each, out of which only 1 combination is logically compatible and correct. Find the correct combination.

1.If ‘x’ increases, ‘y’ increases
2.If ‘x’ decreases, ‘z’ decreases
3.If ‘y’ decreases, ‘z’ decreases
4.‘x’ and ‘y’ cannot decrease together
5.If ‘x’ decreases, ‘y’ decreases

a)      1, 5, 4 b) 2, 3, 4 c)1, 2, 4 d) 2, 4, 5