Answer:
Option D is the correct choice.
Step-by-step explanation:
Let m be the number of marbles per pack. Since we are told that total mass of each marble is [tex]4\frac{1}{2}[/tex], the mass of all marbles in one pack will be [tex]4\frac{1}{2}*m[/tex].
There are such 6 packs so mass of all marbles in 6 packs will be [tex]6*(4\frac{1}{2} m)[/tex].
We are also given that mass of each packaging is [tex]\frac{2}{3}[/tex]g we can find mass of all 6 packaging as [tex]6*(\frac{2}{3})[/tex] .
Now we will write an equation using this information.
[tex]6(4\frac{1}{2}*m+\frac{2}{3} )=629[/tex]
We can see that option D matches with our answer, therefore option D is the correct choice.
