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OpenStudy (anonymous):
Determine the number of cement blocks needed to put up a wall measuring 20 meters in length and 2.5 meters in height. Each block is 10 cm x 20 cm.
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OpenStudy (anonymous):
inorder to do the math properly, we will need to either use cm or meters as our units, lets use meters, so first convert the 10cm and 20cm into meters
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