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skelet666 [1.2K]

3 years ago

13

dvd cases are sold in packages of 9 padded mailing envelopes are sold in packets of 3 what is the least number of cases and enve

lopes you could buy with none left over

1 answer:

Lostsunrise [7]3 years ago

7 0

Im lost at this sorry, hope sum1 helps you out on this tho!

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Step-by-step explanation:

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3 years ago

I am a number between 200 and 2006.I am odd and divisible by 3. What number am I?

Mashcka [7]

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3 years ago

The radius of a cylinder is doubled and its height is halved. Find the ratios of their surface areas.

Inessa [10]

Answer: 1:1

Step-by-step explanation:

Let r be the radius and h be the height of a cylinder.

Formula: Curved surface area of cylinder = $2\pi rh$

Now, if radius of a cylinder is doubled and its height is halved, then new radius will be R= 2r and new height will be $H=\dfrac{1}{2}$

Now, new surface area = $2\pi RH= 2\pi(2r)\dfrac{h}{2}= 2\pi rh$

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Hence, the ratios of their surface areas = 1:1 .

5 0

3 years ago