Calculate the Original Jacket Price After a 30% Increase to $52

Question

The price of a jacket is 52 dollars after a 30% increase.

What was the original price of the jacket?

Video Solution

Solution Steps

00:00 Determine the initial price of the notebook
00:16 Mark the initial price as unknown X
00:40 The current price equals 130 percent of the original price
00:52 Write the equation
01:01 Convert percentages to fractions
01:22 Isolate X
01:45 Factor 52 into 4 and 13
01:50 Factor 130 into 13 and 10
01:55 Reduce wherever possible
01:58 This is the solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given information and convert the percentage to a decimal.

  • Step 2: Apply the appropriate formula to represent the relationship between the original price and the increased price.

  • Step 3: Solve for the original price.

Now, let's work through each step:
Step 1: We are given a final price of 52andapercentageincreaseof3052 and a percentage increase of 30%. As a decimal, the 30% increase is <span class="katex">\( 0.30 .
Step 2: The formula for the new price is given by:
New Price=Original Price+(Original Price×0.30)\text{New Price} = \text{Original Price} + (\text{Original Price} \times 0.30)
This can be rearranged to:
New Price=Original Price×(1+0.30)\text{New Price} = \text{Original Price} \times (1 + 0.30)
Thus, New Price=Original Price×1.30\text{New Price} = \text{Original Price} \times 1.30.
Step 3: Substitute the given new price into the equation:
52=Original Price×1.30 52 = \text{Original Price} \times 1.30
Divide both sides by 1.30 to solve for the Original Price:
Original Price=521.3040 \text{Original Price} = \frac{52}{1.30} \approx 40

Therefore, the original price of the jacket was \40 \).

Answer

$40