Question

Juan ordered 20 pizzas for a party. 45% of the pizzas have 8 slices each. The remaining 55% of the pizzas have 12 slices each. Complete the model. Then complete the statements to find the total number of slices of pizza.

Answer 1

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Explanation:

Number of pizzas with 8 slices: 9

Number of pizzas with 12 slices: 11

45% of the pizzas have 8 slices each. In total, there are 72 slices in these pizzas.

55% of the pizzas have 12 slices each. In total, there are 132 slices in these pizzas.

Altogether, there is a total of 204 slices of pizza.

Answer 2

Total number of pizzas Juan ordered
`20`

Since,
`45\%` of pizzas have
`8` slices.

Therefore, number of pizzas with
`8` slices are:
`45\%*(20)`

`=(45)/(100) *(20)`

`=(45)/(10) *(2)`

`=(90)/(10)`

`=9` pizzas

Also, since,
`55\%` of pizzas have
`12` slices.

Therefore, number of pizzas with
`12` slices are:
`55\%*(20)`

`=(55)/(100) *(20)`

`=(55)/(10) *(2)`

`=(110)/(10)`

`=11` pizzas

Now, there are
`9` pizzas with
`8` slices and
`11` pizzas with
`12` slices.

Therefore, total number of slices of pizza are:
`=(9)(8)+(11)(12)`

`=72+132`

`=204` slices