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andreyandreev [35.5K]
2 years ago
10

PLEASE HELP ITS DUE AT MIDNIGHT

Mathematics
2 answers:
kramer2 years ago
4 0

Step-by-step explanation:

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

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.

antiseptic1488 [7]2 years ago
3 0
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

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