If I get 10 cent a day and I need to get to 13 dollars how many days will it take?

We know that 100 cents is 1 dollar so we need to find how many cents is 13 dollars.

100 cents x 13 dollars = 1300 cents

Then we divide 1300 by 10 to get how many days it will take to get 13 dollars

so ...

1300 divided by 10 = 130

It will take 130 days to get 13 dollars

It will take 10 days to get one dollar, so it would take 130 days to make 13 dollars