## Prealgebra (7th Edition)

A sum of 13 is not represented in the possible outcomes. $\ \ \ \ \ \ \ 1\ \ \ \ \ \ \ \ \ \ \ \ \ \ 2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3\ \ \ \ \ \ \ \ \ \ \ \ \ \ 4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 6$ $\ \ \swarrow\downarrow\searrow \ \ \ \ \swarrow\downarrow\searrow\ \ \ \ \ \ \swarrow\downarrow\searrow\ \ \ \ \swarrow\downarrow\searrow\ \ \ \ \ \ \swarrow\downarrow\searrow\ \ \ \ \ \ \swarrow\downarrow\searrow$ $1\ 2\ 3\ 4\ 5\ 6\ \ \ \ \ \ \downarrow\ \ \ \ \ \ \ \ 1\ 2\ 3\ 4\ 5\ 6\ \ \ \ \ \downarrow\ \ \ \ \ \ \ \ 1\ 2\ 3\ 4\ 5\ 6\ \ \ \ \ \ \ \,\downarrow$ $^{2\ \ \ 3\ \ 4\ \ 5\ \ 6\ \ 7}\ \ \ \ \ \ \downarrow\ \ \ \ \ \ \ \ ^{4\ \ \ \!\,5\ \,6\ \ \ 7\ \ 8\ \ 9}\ \ \ \,\ \downarrow\ \ \ \ \ \ \ ^{6\ \ 7\ \ 8\ \ 9\,\,10\,\,11}\ \ \ \ \ \ \ \,\downarrow\ \ \ \ \$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1\ 2\ 3\ 4\ 5\ 6\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1\ 2\ 3\ 4\ 5\ 6\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1\ 2\ 3\ 4\ 5\ 6$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^{3\ \ 4\ \ 5\ \ \,6\ \ 7\ \ 8}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^{5\,\,6\,\,7\ \ 8\ \ 9\ \ 10}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^{7\ \ 8\ \ 9\ \,10\,11\ 12}\ \ \ \ \ \ \ \ \$