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 $\frac{1}{4}$.

---

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!