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When Mariana does 19 push-ups and 6 sit-ups, it takes a total of 75 seconds. In comparison, she needs 72 seconds to do 18 push-ups and
Question
When Mariana does 19 push-ups and 6 sit-ups, it takes a total of 75 seconds. In comparison,
she needs 72 seconds to do 18 push-ups and 6 sit-ups. How long does it take Mariana to do
each kind of exercise?
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Mathematics
5 years
2021-07-24T06:03:35+00:00
2021-07-24T06:03:35+00:00 1 Answers
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Answer: It takes 3 seconds to do one of both i think
Step-by-step explanation:
19 and 6 was 75 and 18 and 6 was 72 which means 1 push up is 3 seconds multiply 3 by 18 that is 54 then subtract 72 by 54 which gives you 18 then divide 18 by 6 which is 3