Roberto has 40 marble, and Imelda has 27 marbles. Roberto gives 15% of his marbles to Imelda. Imelda now has what percent more marbles that she had before?

.15 * 40 = 6

6/27 = ?

To find out how many marbles Imelda has after Roberto gives her 15% of his marbles, we need to calculate 15% of Roberto's marbles and add that to Imelda's initial number of marbles.

First, determine how many marbles is 15% of Roberto's marbles:
15% of 40 marbles = (15/100) * 40 = 6 marbles.

So, Roberto gives Imelda 6 marbles.

Now, add the 6 marbles to Imelda's initial number of marbles:
27 marbles (Imelda's initial number of marbles) + 6 marbles (the marbles Roberto gives her) = 33 marbles.

Imelda now has 33 marbles.

To find out what percent more marbles Imelda has compared to her initial number, we calculate the percentage increase using the formula:
Percentage increase = [(New Value - Original Value) / Original Value] * 100.

Substituting the values into the formula, we get:
Percentage increase = [(33 - 27) / 27] * 100
Percentage increase = (6 / 27) * 100
Percentage increase ≈ 22.22%.

Therefore, Imelda now has approximately 22.22% more marbles than she had before.