Question

a group orders three large veggie pizzas each slice represents eighth of an entire Pizza the group eats 3/4 of a piece of how many slices of pizza are left

Answer 1

1 pizza contain 8 slices, so we can state a rule of three as:

`\begin{gathered} 1\text{ Pizza ------ 8 slices} \\ (3)/(4)\text{ pizza ------ x} \end{gathered}`

then, x is given by

`x=(((3)/(4))(8))/(1)\text{ slices}`

which gives

`\begin{gathered} x=(3)/(4)*8 \\ x=(3*8)/(4) \\ x=3*2 \\ x=6\text{ slices} \end{gathered}`

that is, 3/4 of pizza is equivalent to 6 slices. So, there are 8 - 6 = 2 slices left of one pizza.

However, they bought 3 large pizzas and ate almost one of them. So, there are 2x8 = 16slices plus 2 slices, that is, 18 slices are left.