Question

Morgan works at a store that sells clothing accessories. The supply function

for baseball caps is p= Q-4, where Pis the price and Q is the quantity of
baseball caps. If Morgan sells the baseball caps for $18 apiece, how many
baseball caps will the store supply?
A. 18 baseball caps
B. 22 baseball caps
C. 26 baseball caps
D. 4 baseball caps

Answer 1

B. 22 baseball cap

Explanation:

P=Q-4

Make Q the subject of the formula

P+4=Q

Therefore,

Q=p+4

If Morgan sells the baseball cap for $18

Q=18+4

Q=22

Morgan store will supply 22 baseball caps

Answer 2

The number of supply of base balls is 22

Explanation:

Given

P = Q - 4

Price = $18

Required

Number of supply

The relationship between price and quantity is given to be P = Q - 4 where price is represented by P and Q represents the quantity.

To get the quantity supply when price is $18, all you need to do is to substitute 18 for P in the above equation;

Thus, giving:

18 = Q - 4

Make Q the subject of formula

Q = 18 + 4

Q = 22 quantities

Hence, the number of supply of base balls is 22