A bookstore had 45 copies of a magazine. Yesterday, it sold 2/3 of them. Today, it sold 3/5 of what remained. How many copies does the bookstore have left?

The bookstore has 10 copies left.

Step- By- Step Explanation

After the first day, 1/3 of the original amount remained: (1/3)·45 = 15

After the second day, 2/3 of that amount remained: (2/3)·15 = 10

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: