I NEED HELP IN THIS QUESTION PLEASE
2 answers:
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Answer:
$4
Step-by-step explanation:
Total consumer surplus is given by the difference between the willingness to pay of each customer to the actual price of a good.
Since Avery is only willing to pay $10 and the pizza costs $12, Avery will not buy a pizza and should not be considered for consumer surplus.
Since Pia is willing to pay $13, and Sylvio is willing to pay $15, consumer surplus is:
When the price of pizza is $12, a consumer surplus of $4 is achieved.
we know that in direct variation as x increase y also increases.
in indirect variation x decreases y increase and vice versa.
in part a we have x at top (numerator ) and y at denominator it mean indirect variation (as x increases y decreases).
to find k we know that for indirect variation xy=k
if we rewrite the equation x=9/y we get xy=9
which mean k=9 .
in part b we have 4xy=20 if we simplify this equation we get
so here if we rewrite in terms of x.
we get x=5/y which represents indirect variation.
and we know xy=k
we have xy=5 .so k=5