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ohaa [14]
4 years ago
11

Jeff can put shingles on a house in 9 hours while David can shingle the same house in 6 hours. If the two work together, how lon

g would it take them to shingle the house? about 3 hours about 3 hours and 30 minutes about 4 hours about 4 hours and 30 minutes
Mathematics
2 answers:
hodyreva [135]4 years ago
6 0

Answer:

3-4

Step-by-step explanation:

kkurt [141]4 years ago
5 0

Answer:

i think it is 4 hours

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Given:

Total space = 800 square feet

Each sofa = 50 square feet

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a) Write a mathematical model representing the store's constraints:

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The mathematical model will be:

50S + 30C ≤ 800

At least 5 sofas are to be dispayed: S ≥ 5

At least 5 chairs are to be displayed: C ≥ 5

b)

1) Maximize the total pieces of furniture displayed:

S + C = MAX

2) Maximize the total expected number of daily sales:

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3) Maximize the total expected daily profit:

Given:

Profit on sofas = $200

Profit on chairs = $100

Max Expected daily profit =

Max = (200S * 0.03) + (100C * 0.05)

<em>Max = 6S + 5C</em>

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Answer:

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