21-09-2017
Mathematics

contestada

For the past three months, Grace has been using her cellphone for 43 minutes, 62 minutes, and 57 minutes. How many minutes would she have to use her cellphone this month for the average usage over 4 months to be 55 minutes? Plz help thxs

Respuesta :

darrenW darrenW

21-09-2017

The answer is 58, hope this helps

Answer Link

musiclover10045 musiclover10045

21-09-2017

average for 4 months total needs to equal 55*4 = 220 minutes

43 + 62 + 57 = 162

220-162 = 58

58 minutes

Answer Link

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