Questions by Ronen Cypis

Questions by Ronen Cypis

HELP ASAP !! the ratio of math students who use mechanical pencils to those that use regular pencils is 3/5 if 432 students use mechanical pencils how many students use regular pencils?

asked Sep 11, 2017

1 answer

0 votes

39.3k views

The _________ lived in southern Mexico from around 1500 BC to AD 750, and evidence shows that they were influenced by Olmec civilization. Toltec Aztec Maya Zapotec

asked Aug 25, 2017

2 answers

1 vote

221k views

The half-life of thorium-227 is 18.72 days. How many days are required for three-fourths of a given amount to decay? I'm not quite sure how to set it up to even start working it? help would be appreciated!

asked Jun 25, 2015

1 answer

2 votes

52.5k views

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