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05/09/2017 at 10:48
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Mrs. Lowe is buying lunch for her class of 25 students. A large pizza that serves three people costs $8, and a giant sub that serves four people costs $9. If pizzas and subs cannot be purchased in part, what is the least amount it will cost Mrs. Lowe to feed all the students in her class?



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    VTK-VangTrangKhuyet 05/09/2017 at 11:51

    Following thread we have :

    Mrs. Lowe is buying lunch for her class of 25 students.

    A large pizza : 3 people / 8$.

    A giant sub :  4 people / 9$.

    So we will buy 3 large pizzas for 9 people, and 4 giant subs for 16 people.

    The sum will be : \(3\cdot8+4\cdot9=60\)$ => the least amount it will cost Mrs. Lowe to feed all the students in her class.

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