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Marina CMI [18]

3 years ago

14

Find the unit rate. 6 2/5 revolutions in 2 2/3 seconds

1 answer:

Brums [2.3K]3 years ago

6 0

The unit rate will be in revolutions per second. That means divide number of revolutions by number of seconds.

first convert from mixed fraction.
6 2/5 = 32/5 revolutions
2 2/3 = 8/3 seconds

32/5 ÷ 8/3
flip multiply
32/5 × 3/8 = 12/5 revolutions per second

12/5 = 2 2/5 revolutions per second

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Answer:

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Step-by-step explanation:

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Total Surface Area of a cylinder = $2\pi r^2+2\pi rh$

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$2\pi r^2+2\pi rh=2\pi r(r+h)\\=2*1.5*\pi(1.5+4.25)\\=3\pi *5.75\\=17.25\pi \:in^2$

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To determine this, we divide the total surface area of the metal sheet by the total surface area of each can.

Number of Cans=Total surface area of the metal sheet÷Total surface area of each can.

$=1000 \div 17.25\pi\\=18.45$

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weqwewe [10]

Answer:

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