A student has 5 bags of marbles. Each bag originally contains m marbles. After adding 10 marbles to each bag, there are a total of 80 marbles. Which equation can be solved to determine how many marbles were originally in each bag?

Question

A.

B.

C.

D.

Answer 1

To formulate an equation based on the information provided:

1. Each bag originally has \( m \) marbles.
2. There are 5 bags, so the total number of marbles originally in the bags is \( 5m \).
3. After adding 10 marbles to each bag, each bag then has \( m + 10 \) marbles.
4. The total number of marbles after adding the extra marbles to all bags is then \( 5(m + 10) \).
5. This total is given to be 80 marbles.

Now we can set up the equation:

\[ 5(m + 10) = 80 \]

This equation can be expanded and then solved for \( m \) to find the original number of marbles in each bag.

If you need the answer as one of the options A, B, C, D, you would need to provide those options so a specific equation can be identified.