Question

Please help due soon.

Answer 1

Answer:

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

Step-by-step explanation:

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

$\text{Mean}=\frac{87+31}{2}= \frac{118}{2}=59 \text{ marbles}$

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.