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Vladimir79 [104]
3 years ago
8

Pearl’s Biking Company manufactures and sells bikes. Each bike costs £40 to make, and the company’s fixed costs are £5000. In ad

dition, Pearl knows that the price of each bike comes from the price function P(x) = 300 – 2x where x is the total number of bikes manufactured and sold. Questions a) Find the company’s revenue function R(x), the company’s cost function C(x) and find the breakeven points
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
6 0

Answer:

R(x) = £[300 - 2x²]

C(x) = £[5000 + 40x]

The breakeven points are when number of bikes manufactured is 21 or 239

Step-by-step explanation:

The company price function P(x) = 300 - 2x. x is the number of items that can be sold at $P per item.

The revenue is given as price per item × number of item sold.

Revenue R(x) = xP(x) = x(300 - 2x) = 300x - 2x²

R(x) = £[300 - 2x²]

The cost function [C(x)] is the sum of variable cost and fixed cost. Therefore:

C(x) = fixed cost + variable cost

Since the fixed cost is £5000 and  Each bike costs £40, this means that the variable cost = 40 × number of items manufactured = 40 × x = 40x

Therefore C(x) = £[5000 + 40x]

At breakeven point, the cost of producing an item is equal to the revenue (amount the item is sold) gotten from the item.

That is cost = revenue,

C(x) = R(x)

5000 + 40x = 300x - x²

x² - 300x + 40x + 5000 = 0

x² - 260x + 5000 = 0

x ≈ 239  or x ≈ 21. The breakeven points are when number of bikes manufactured is 21 or 239

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R is an equivalence relation, since R is reflexive, symmetric, and transitive.

Step-by-step explanation:

The relation R is an equivalence if it is reflexive, symmetric and transitive.

The order to options required to show that R is an equivalence relation are;

((a, b), (a, b)) ∈ R since a·b = b·a

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Reasons:

Prove that the relation R is reflexive

Reflexive property is a property is the property that a number has a value that it posses (it is equal to itself)

The given relation is ((a, b), (c, d)) ∈ R if and only if a·d = b·c

By multiplication property of equality; a·b = b·a

Therefore;

((a, b), (a, b)) ∈ R

The relation, R, is reflexive.

Prove that the relation, R, is symmetric

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Therefore, c·b = d·a implies ((c, d), (a, b)) ∈ R

((a, b), (c, d)) and ((c, d), (a, b)) are symmetric.

Therefore, the relation, R, is symmetric.

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Symbolically, transitive property is as follows; If x = y, and y = z, then x = z

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