Question

Please help due soon.

Answer 1

If Jenny gives her brother 28 marbles, they will have 59 marbles each.

Explanation:

The key to finding this answer is a mean, or average. Find it for the number of marbles:

`\text{Mean}=(87+31)/(2)= (118)/(2)=59 \text{ marbles}`

So, on average, each one should have 59 marbles.

Finally, to find out how many marbles Jenny should give to her brother, subtract the average (59 marbles) from her count:

`87-59=28 \text{ marbles}`

This means Jenny would give up 28 of her marbles to her brother.