Dwayne is selling hamburgers and cheeseburgers. He has 100 burger buns. Each hamburger sells for $3, and each cheeseburger sells for $3.50. Which system of inequalities represents the number of hamburgers, h, and the number of cheeseburgers, c, he must sell to have sales of at least $80?
a. h + c ≤ 80 3h + 3.5c ≤ 100
b. h + c ≤ 80 3h + 3.5c ≥ 100
c. h + c ≤ 100 3h + 3.5c ≤ 80
d. h + c ≤ 100 3h + 3.5c ≥ 80

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Jawapan

2016-07-28T00:29:15+08:00
D. h + c < 100 3h + 3.5c > 80
answer is d.
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