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I have to paint one side of a wall.  The wall is $15$ meters tall and $60$ meters long.  Each gallon of paint covers $400$ square feet. If a foot is approximately $0.3048$ meters, then what is the smallest whole number of gallons I can buy and have enough paint to cover the whole wall?

 Jun 26, 2024
 #1
avatar+1926 
+1

We can use simple conversions and calculations to solve this problem. 

We first find the total area needed, then divide it by 400, before doing conversions. 

 

Thus, we have

\( [ 15 * 60 *1 / 400] = 9/4\)

 

Converting to meters, we have

\(\frac{9/4}{(0.3048^2)} \approx 25\)

 

so our answer is just 25. 

 

Thanks! :)

 Jun 26, 2024

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