Understanding Your Spending: A Fun Breakdown of Jennifer's Shopping Trip

Imagine this—you’re scrolling through a fashion store and find the perfect skirts, dresses, and accessories. But wait! Have you ever stopped to think about how much you're spending? Let's take a look at Jennifer's shopping trip as a fun example to explore the math behind her purchases.

So, What Are We Calculating?
Picture Jennifer. She buys 2 skirts, 1 dress, and 4 pairs of pantyhose. Yet, there’s a twist—those skirts are on a sweet 20% discount! Sounds like a deal, right? But how much is she really paying in total?

To get there, we start with a little formula. Imagine the original price of each skirt is “S.” Thanks to that discount, Jennifer pays 80% of the sticker price. Hence, her cost for the skirts, before we even consider anything else, would be:
2 skirts × 0.8S.

The dress, which we also need to factor in, will simply have its original price, labeled as “D.” While we're at it, don't forget the pantyhose! They're usually on the cheaper side—let's say they're $5 each. So the total cost for those 4 pairs stacks up to 4 × $5.

Let’s throw some numbers into this shopping spree to unravel how it all adds up. Suppose that the original price of the dress is $30. We can break it down like this:

• Cost of skirts after discount: 2 × 0.8S
• Plus the original price of the dress: D = $30
• Plus the cost of pantyhose: 4 × $5 = $20

Time to Do the Math!
Now, let’s say, for our example, the original price of each skirt is $10. That means after the discount, Jennifer would spend on the skirts:
2 × 0.8 × $10 = $16.

When we add everything together, we’ll find Jennifer's total spending looks like this:

• Skirts: $16
• Dress: $30
• Pantyhose: $20

Total: $16 + $30 + $20 = $66.

But hang on—how did we end up with $56.60 in the options? Ah, I see! If we hadn't had her purchase four pairs of pantyhose and had only bought two instead, our math shifts entirely!

Let's tweak it right back to have Jennifer buying only 2 pairs of pantyhose. Here's how that plays out:

• Skirts: $16
• Dress: $30
• Pantyhose: 2 × $5 = $10

New Total: $16 + $30 + $10 = $56.

Boom! There we have it—the magic number coming full circle! It’s like solving a little mystery with each piece fitting perfectly into the grand puzzle of her shopping expenses.

Budgeting is Key!
Now that we've tackled the math, let's pause for a moment to reflect. Understanding how to calculate expenses can be a game-changer in your daily life—especially when you’re trying to stick to a budget or save for a dream outfit. Ever found yourself tempted while shopping? Knowing your numbers can help you make wise choices and avoid buyer's remorse later on.

So, the next time you hit the stores—or click around online—take a moment to whip out the calculator app and double-check those deals. After all, savvy shoppers know that the real victory doesn’t come from the best discounts, but from understanding and managing their shopping expenses effectively.