In the stock market, changes in value used to be

Question

indicated by fractions, which represented portions of $1.
If a stock had a value of $11.50, write and evaluate an
addition expression to find how much the stock is worth
after an increase of 1 /4. How do you know that is the
correct expression?
2) Malik earns an average of 4 1/ 2 points on his daily

Answer 1

To solve your question regarding stock value and Malik's earnings, here’s how you can approach each part:

Part 1: Stock Price Increase

1. Initial Value: The stock is initially worth $11.50.
2. Increase: The stock has an increase of \( \frac{1}{4} \) (which is equivalent to $0.25 when expressed in dollars).

Writing the Addition Expression

To find the new value of the stock after the increase, you can write the expression like this:

\[ 11.50 + 0.25 \]

Evaluating the Expression

Now, you evaluate the expression:

\[ 11.50 + 0.25 = 11.75 \]

So, after the increase, the stock is worth $11.75.

Justification

You know this is the correct expression because you are adding the increase to the original value. The expression \( 11.50 + 0.25 \) accurately represents the operation of increasing the stock by \( \frac{1}{4} \).

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Part 2: Malik's Earnings

You mentioned that Malik earns an average of \( 4 \frac{1}{2} \) points (which is \( 4.5 \) when converted to decimal) on his daily performance. If you have a specific question about Malik, or if you're looking for how to calculate his total earnings over a certain period (like weeks or days), please provide more details so I can assist you further.

Example Evaluation

If Malik's average earnings continued for, say, 5 days, you would multiply his average by the number of days:

\[ 4.5 \times 5 = 22.5 \]

This means he would earn a total of 22.5 points over 5 days.

Feel free to specify additional details or questions!