Answer:
d ≤ 4
Step-by-step explanation:
4d + 7 ≤ 23
Subtract 7 from both sides:-
4d ≤ 16
d ≤ 4
[tex]Solution, 4d+7\le \:23\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:d\le \:4\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:4]\end{bmatrix}[/tex]
[tex]Steps:[/tex]
[tex]4d+7\le \:23[/tex]
[tex]\mathrm{Subtract\:}7\mathrm{\:from\:both\:sides},\\4d+7-7\le \:23-7[/tex]
[tex]\mathrm{Simplify},\\4d\le \:16[/tex]
[tex]\mathrm{Divide\:both\:sides\:by\:}4,\\\frac{4d}{4}\le \frac{16}{4}[/tex]
[tex]\mathrm{Simplify},\\d\le \:4[/tex]
[tex]\mathrm{The\:Correct\:Answer\:is\:d\le \:4}[/tex]
[tex]\mathrm{Hope\:This\:Helps!!!}[/tex]
[tex]-Austint1414[/tex]
