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Mathematics, 06.01.2021 01:00 BrainzOli7408

PLEASE HELP When Grayson does 8 push-ups and 9 sit-ups, it takes a total of 34 seconds. In comparison, he needs 56 seconds to do 8 push-ups and 20 sit-ups. How long does it take Grayson to do each kind of exercise?

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PLEASE HELP When Grayson does 8 push-ups and 9 sit-ups, it takes a total of 34 seconds. In comparis...
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