Answer:
[tex]x > 15[/tex]
Step-by-step explanation:
Given
[tex]\frac{x}{3} > 5[/tex]
Solving (a): Solve
[tex]\frac{x}{3} > 5[/tex]
Multiply both sides by 3
[tex]3 * \frac{x}{3} > 5 * 3[/tex]
[tex]x > 5 * 3[/tex]
[tex]x > 15[/tex]
Solving (b): Number line
The number line points towards the right, this means greater than (>)
The open circle on 15 is used for only < and >. So the open circle indicates >.
See attachment for number line
