Question 1066854
An elevator has a maximum capacity of 2700 lb. Suppose the average weight of an adult is 180 lb. and the average weight of a child is 60 lb. Let a represent the number of adults and c the number of children riding in the elevator. 
a. Write an inequality that express the number of adults and children who can ride in the elevator without overloading it.
Equation:
weight + weight <= 2700
180a + 60c <= 2700
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b. Graph the inequality. (adults or A is x-axes, Children or C is y-axes)
C(a) <= -180/60a + 270/6
C(a) <= -3a + 45
{{{graph(400,400,-1,10,-1,70,y<-3x+45,-3x+45)}}}
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c. Use the graph to find a combination of adults and children that satisfy the inequality.  (0,0) would work
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Cheers,
Stan H.
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