Kaleb and Kobe went to the mall and spent the same amount of money. Kaleb spent less than or equal to $45, while Kobe spent more than $40. The task is to create a number line that shows all possible amounts that Kaleb or Kobe could have spent.

AlgebraInequalitiesNumber LineInterval Notation
2025/4/22

1. Problem Description

Kaleb and Kobe went to the mall and spent the same amount of money. Kaleb spent less than or equal to 45,whileKobespentmorethan45, while Kobe spent more than
4

0. The task is to create a number line that shows all possible amounts that Kaleb or Kobe could have spent.

2. Solution Steps

Let xx be the amount of money that Kaleb and Kobe each spent.
We are given that Kaleb spent less than or equal to 45,so45, so x \le 45$.
We are also given that Kobe spent more than 40,so40, so x > 40$.
Combining these inequalities, we have 40<x4540 < x \le 45.
This means that xx can be any value greater than 4040 and less than or equal to 4545.
To represent this on a number line, we need to indicate the range of possible values for xx. Since x>40x > 40, we use an open circle at 4040 to indicate that 4040 is not included in the possible values. Since x45x \le 45, we use a closed circle (or a filled-in circle) at 4545 to indicate that 4545 is included in the possible values. We then draw a line segment between 4040 and 4545 to represent all the values between these two numbers.
From the image, the marks on the number line are at intervals of

5. The dot is at

1

5. If each mark is 5, we could add labels of $35, 40, 45$. Then an open circle would be placed just to the right of $40$ and a closed circle at

4

5. We would shade the line between these two circles.

3. Final Answer

The solution should be a number line with an open circle just to the right of 4040 and a closed circle at 4545, with the line segment between them shaded.

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