Answer:
[tex]r < 5.25[/tex]
Step-by-step explanation:
we have
[tex]4.8r + 49.3 < 74.5[/tex]
Solve for r
Subtract 49.3 both sides
[tex]4.8r + 49.3-49.3 < 74.5-49.3[/tex]
[tex]4.8r < 25.2[/tex]
Divide by 4.8 both sides
[tex]4.8r/4.8 < 25.2/4.8[/tex]
[tex]r < 5.25[/tex]
The solution is the interval -----> (-∞,5.25)
All real numbers less than 5.25
In a number line, is the shaded area at left of r=5.25 (open circle)
see the attached figure to better understand the problem
