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Lelechka [254]
2 years ago
7

The number of birdhouses Ben can make varies directly with the amount of time he spends making the birdhouses. He can make 4 bir

dhouses in 1 1/2 hours. How many birdhouses can he make in 9 hours?
Mathematics
2 answers:
laila [671]2 years ago
4 0

Answer:

24

Step-by-step explanation:

if he can make 4 birdhouses in 1 1/2 hours, 1 1/2 hours x 2 = 3. 8 birdhouses per 3 hours. 3 x 3 = 9 hours, 8 x 3 = 27

zvonat [6]2 years ago
4 0

Answer:

24 birdhouses

Step-by-step explanation:

This is a proportional relationship.  y = kx, where k is the constant of proportionality.  We can determine k as follows:

4 birdhouses = k(1 1/2  hours), which leads to:

  4 birdhouses

------------------------- = 8/3 birdhouses/hr

    3/2 hours

In 9 hours, Ben can make (8/3)(9) birdhouses:  24 birdhouses

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