Creating one-variable quadratic equations and inequalities: tutorial
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question
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an architect designed a building with as many rooms on each floor as the total number of floors. eventually, the
construction company revised the plan to remove 5 floors and have 6 fewer rooms on each floor. the maximum number of
rooms that the building could hold was 20.
if x represents the original number of rooms, determine which inequality correctly represents the situation. then determine
which possibilities for the original number of rooms satisfy the inequality.
correct inequality
possibilities for onginal number of rooms
x
11x + 30520
9
x2-11-30 220
+ 11x + 30 2 20
10
x-116-30520
11
12
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