Respuesta :

isa51el
Answer:
The rest of the question is the attached figure
The percent change =
If (+ve) increase and if (-ve) decrease
Part A: What is the percent of change in the cost of a pizza?
The initial price = $7.5
The final price = $9
The percent change = %
Part B: What is the percent of change in the cost of a cheeseburger?
The initial price = $5
The final price = $6.5
The percent change = %
Part C: What is the percent of change in the cost of a serving fries?
The initial price = $2
The final price = $4.5
The percent change = %
Part D: What is the percent of change in the cost of a hot dog?
The initial price = $2.5
The final price = $2
The percent change = %
i found this online i hope if helps you
Ver imagen isa51el
atashinchiii

Step-by-step explanation:

  1. [tex]\frac{9.00 - 7.50}{7.50} \times 100\% = 20\% \: increase[/tex]
  2. [tex] \frac{6.50 - 5.00}{5.00} \times 100\% = 30\% \: increase[/tex]
  3. [tex] \frac{4.50 - 2.00}{2.00} \times 100\% = 125\% \: increase[/tex]
  4. [tex] \frac{2.00 - 2.50}{2.50} \times 100\% = - 20\%[/tex]

In order to get the increase or decrease, we need to get the difference of the two prices first. Then, pick a "reference year".

From the calculations, notice how I made the earlier years as my reference points. If the calculations produced positive results, therefore, it has increased. If it produced a negative results, from the reference year's price, it has decreased in price.

Otras preguntas