Answer:
Given: A number b minus 4.2 is less than -7.5.
Here, b is the number.
"less than" symbol is represented by '<'
"minus" means subtract.
"b minus 4.2" translated to b - 4.2
Then, our inequality becomes;
[tex]b - 4.2 < -7.5[/tex]
To solve for b;
Add 4.2 both sides we get;
[tex]b -4.2 + 4.2 < -7.5 + 4.2[/tex]
Simplify:
[tex]b < -3.3[/tex]
Therefore, an inequality for the given word sentence is, [tex]b - 4.2 < -7.5[/tex]
