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Mathematics 21 Online
OpenStudy (anonymous):

Roland's heart beats 495 times in 6 minutes. At that rate, how many times would it beat in 20 minutes? A. 615 B. 1650 C. 9900 D. 2970

OpenStudy (anonymous):

YOu have to find out how many times it beats a minute by dividing 495/6

OpenStudy (anonymous):

First

OpenStudy (anonymous):

82.5

OpenStudy (anonymous):

Correct, now since it beats 82.5 times a minute and you have to find out how many times it beats in 20 minutes, you multiply 82.5*20

OpenStudy (anonymous):

msxsammiboox listen me from a min

OpenStudy (anonymous):

Hmm?

OpenStudy (anonymous):

1650

OpenStudy (anonymous):

And that is your answer :)

OpenStudy (anonymous):

You can check by dividing 1650/20 and 495/6

OpenStudy (anonymous):

msxsammiboox x come to my queastion if ur done helping

OpenStudy (anonymous):

Kk :)

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