Mathematics, 22.01.2020 00:31, myanniespencer39
When mei does 17 push-ups and 6 sit-ups, it takes a total of 35 seconds. in comparison, she needs 41 seconds to do 20 push-ups and 7 sit-ups. how long does it take mei to do each kind of exercise?
Answers: 2
Mathematics, 21.06.2019 15:30, morganwendel126
Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?
Answers: 2
When mei does 17 push-ups and 6 sit-ups, it takes a total of 35 seconds. in comparison, she needs 41...
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