Mathematics, 06.05.2021 01:00 davisnaziyahovz5sk

Marsha burns 9 cal per minute on the treadmill and 7 cal per minute on the elliptical. If she spent a total of 57 minutes working out and burn a total of 463 cal, how many minutes did she spend on the elliptical?

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Marsha burns 9 cal per minute on the treadmill and 7 cal per minute on the elliptical. If she spent...

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Marsha burns 9 cal per minute on the treadmill and 7 cal per minute on the elliptical. If she spent a total of 57 minutes working out and burn a total of 463 cal, how many minutes did she spend on the elliptical?￼

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Marsha burns 9 cal per minute on the treadmill and 7 cal per minute on the elliptical. If she spent a total of 57 minutes working out and burn a total of 463 cal, how many minutes did she spend on the elliptical?