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A website says that you'll need 48 fifty-pound bags of sand to fill a sandbox that measures 8 ft by 8 ft by 1 ft. How many bags would you need for sandbox 6 ft by 4 ft by 1 ft?

 Feb 11, 2020
 #1
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8 x 8 x 1  =   64  ft^3

 

6 x 4 x 1  =   24 ft^3

 

So....we have this proportion

 

 

48 / 64 =  x / 24        where x is the number of bags we need

 

3 / 4  =  x  /24             multiply   both sides by 24

 

18  =  x

 

We need 18 bags

 

 

cool cool cool

 Feb 11, 2020

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