Arectangular field will have one side made of a brick wall and the other three sides made of wooden fence. brick wall costs 10 dollars per meter and wooden fence costs 20 dollars for 4 meters. the area of the field is to be 2400m^2. what length should the brick wall be to give the lowest total cost of wall plus fence?

1,152

Step-by-step explanation:

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get