samiam61
28.02.2021 •
Mathematics
On average she can knit 2cm in 35 minutes express this as a rate in mm/minutes
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Ответ:
17.142858mm Per Minute
Step-by-step explanation:
First divide 2 by 35 to get 0.057148286 which you then divide by 2 because knitting 1cm should take half the time of 2cm to get 0.02857143;
1cm is equal to 10mm SO we multiply the final value of the calculation I shared before by 10 to get 0.2857143 which would be 1/60 of the answer since there are 60 seconds per minute so FINALLY we multiply the 0.2857143 by 60 to find that she can knit 17.142858 mm per minute!
Ответ:
b
Step-by-step explanation: