Answer:
Variable d represents the time per minute Lilianna spends in the park.
Step-by-step explanation:
Lilianna uses [tex]\frac{3}{4}[/tex] calories per minute just by sitting. She uses 1 more calorie per minute by walking.
Liliana uses a total of [tex]12\frac{1}{4}[/tex] calories walking to the park.
Lilianna uses the equation, [tex]d(\frac{3}{4}+1)=12\frac{1}{4}[/tex] to represent the situation.
Here, variable d represents the time per minute she spends in the park.
and is given as,
[tex]d(\frac{3}{4}+1)=12\frac{1}{4}[/tex]
It can be written as,
[tex]d(\frac{3}{4}+1)=\frac{49}{4}[/tex]
Solving for d,
[tex]d(\frac{3}{4}+1)=\frac{49}{4}[/tex]
[tex]\Rightarrow d(\frac{3+4}{4})=\frac{49}{4}[/tex]
[tex]\Rightarrow d(\frac{7}{4})=\frac{49}{4}[/tex]
[tex]\Rightarrow d=\frac{49 \times 4}{4 \times 7}[/tex]
[tex]\Rightarrow d=7[/tex]
Thus, she spend d= 7 minutes total to the park.
i thought this was the one i had but sorry also I think it D tho
