elizabert has a box of shirts.1/2 of the shirts are small,2/5of the shirts are medium, and 5 shirts are large. how many shirts are in box?

Answer 1

1/2 + 2/5 = 9/10
so, the remaining 1/10 are large

1/10 x = 5
x = 50

Answer 2

Let x = total number of shirts

0.5x + 0.4x + 5 = x

0.9x + 5 = x

5 = 0.1x

5/0.1 = x

50 = x