Understanding Wednesday's Sales in Simple Terms

What will be the expression for Wednesday's sales in terms of d if $150 less than double Tuesday's sales is calculated?

• A. 1.5d - 100
• B. 2d + 150
• C. 2d − 150
• D. 0.5d + 150

Answer: (C)

To derive the expression for Wednesday's sales based on the given information, we start with the fact that "double Tuesday's sales" means we are taking two times Tuesday's sales. If we denote Tuesday's sales as \( d \), then double Tuesday's sales can be expressed as \( 2d \). Next, the phrase "150 less than double Tuesday's sales" indicates that we need to subtract 150 from \( 2d \). Therefore, we can mathematically represent this as \( 2d - 150 \). This expression, \( 2d - 150 \), directly corresponds to the sales on Wednesday, as it captures the necessary operations dictated by the problem statement. Hence, the correct representation of Wednesday's sales in terms of \( d \) is \( 2d - 150 \). This leads us to the conclusion that the answer is \( 2d - 150 \), which reflects the calculation accurately based on the information provided.

When you encounter a math problem like this, you might think, "What on Earth does this mean?" Don't worry; you're not alone! Let's unravel this step by step, making sure it feels as clear as your favorite sitcom plot twist.

First off, the key phrase here is "double Tuesday's sales." If we use ( d ) to represent Tuesday's sales, saying "double" means we need to calculate ( 2d ). It's like doubling a recipe: if you have a cake recipe that calls for 1 cup of sugar, doubling it would mean you now need 2 cups, right?

Now, here’s where it gets a bit tricky, but stay with me! When the question mentions "150 less than double Tuesday's sales," we're being asked to subtract 150 from our previous result, ( 2d ). So, what you're really looking at is:

[

2d - 150

]

See? Simple as that!

This expression defines Wednesday's sales in terms of Tuesday's sales. If Tuesday's sales were high, then guess what? Wednesday's numbers could still be lower than double what you made on Tuesday—hence the "less than" part of the equation.

So why does this matter for your college math placement test? Understanding these expressions lays the groundwork for more complex algebraic concepts. Plus, grasping the fundamentals can help you tackle various math problems. Remember that every little piece of information, like a puzzle, helps create the big picture!

In summary, when asked for the expression of Wednesday's sales with the provided context, you can confidently say: Wednesday's Sales = ( 2d - 150 ). Simple as pie, right? Just a little math magic to take the edge off those placement test jitters! Next time you encounter similar phrases, look for the key components—you're going to nail it!