Question

A display has

6
66 packs of marbles with a total mass of
629

g
629g629, start text, g, end text. The packaging of each pack has a mass of
2
3

g
3
2
​
gstart fraction, 2, divided by, 3, end fraction, start text, g, end text and each marble has a mass of
4
1
2

g
4
2
1
​
g4, start fraction, 1, divided by, 2, end fraction, start text, g, end text.
Which equation can we use to determine
m
mm, the number of marbles per pack?

Answer 1

D. 6(4 1/2 m + 2/3)=629

Explanation:

I did it on khan academy so theres no way this is incorrect.

Answer 2

• D) 6(4 1/2 m + 2/3)=629

Explanation:

A display has 6 packs of marbles with a total mass of 629g. The packaging of each pack has a mass of 2/3 g and each marble has a mass of 4 1/2 g.

Which equation can we use to determine m, the number of marbles per pack?

• A 6*4 1/2 m+ 2/3=629
• B 6 m(4 1/2+ 2/3)=629
• C 6 m+4 1/2+ 2/3=629
• D 6(4 1/2 m + 2/3)=629

================================

A total mass is the sum of 6 packs and each pack is:

• m marbles + packaging = 4 1/2 m + 2/3

We can put it as equation:

• 6(4 1/2m + 2/3) = 629

Correct option is D