Solve the problem.
-A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 54 marbles in it. At least how many green marbles does it have?
A) At least 19 green marbles
B) At least 36 green marbles
C) At least 18 green marbles
D) At least 27 green marbles

Question

Quizplus · Accepted Answer

Let the number of green marbles be $g$ and blue marbles be $2g$. The total number of marbles is at least 54, so $g + 2g \geq 54$, which simplifies to $3g \geq 54$. Solving for $g$, we get $g \geq 18$.

Solve the Problem. -A Bag of Marbles Has Twice as Many Blue Marbles