# computing spreadsheet help

*label*Programming

*timer*Asked: Nov 4th, 2015

*account_balance_wallet*$5

**Question description**

1. State University must purchase 1700 computers from three vendors.

Vendor 1 charges $500 per computer plus a total delivery charge of $5,000.

Vendor 2 charges $350 per computer plus a total delivery charge of $4,000.

Vendor 3 charges $250 per computer plus a total delivery charge of $6,000.

Vendor 1 will sell the university at most +600 computers, vendor 2, at most

1100, and vendor 3, at most 700. The minimum order from a vendor is

200 computers. Determine how to minimize the cost of purchasing the

needed computers.

a. Interpretation “a” - Each vendor must supply at least the

minimum. Hence all vendors are used and all delivery charges are

incurred.

b. Interpretation “b” - Each vendor must supply at least the

minimum only if that vendor is used. Hence delivery charges are

incurred only for those vendors used. Hint - A fixed cost can be

modeled by using a binary integer variable.

## Tutor Answer

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors