When tolls on the Dulles Airport Greenway were reduced from $2.25 to $1.50, traffic increased from 18,000 to 20,000 trips a day. Assuming all changes in quantity were due to the change in price, what is the price elasticity of demand for the Dulles Airport Greenway

The price elasticity demand for the Dulles Airport Greenway = -0.33

Step-by-step explanation:

Price elasticity of demand is the ratio of how much the quantity of good demanded changes compared to the original demand divided by the change in price compared to the original price of the good.

Mathematically,

Price elasticity of demand = (ΔQ/Q) ÷ (ΔP/P)

ΔQ = Change in quantity demanded = 20000 - 18000 = 2000

Q = initial quantity demanded = 18,000

ΔP = Change in price = 1.5 - 2.25 = -$0.75

P = Original price = $2.25

price elasticity of demand

= (2000/18000) ÷ (-0.75/2.25)

= - 0.3333

Hope this Helps!!!

idk

step-by-step explanation: i just don't

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt