asimon2915
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Gianna has a coin collection. She keeps 8 of the coins in her box, which is 10% of the collection. How many total coins are in her collection?

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Based on the amount kept and the percentage of the total it is, her total coin collection must be 80 coins.

Gianna kept 8 coins and this is 10% of her coins.

How many coins does she have?

Assuming the number of coins she has is x, the expression would be:

8 coins = x× 10%

8 = 0.1x

x = 8/ 0.1

x = 80 coins

In conclusion, there are 80 coins in the collection.

Find out more on percentages at https://brainly.com/question/10548167.