beccagunderson beccagunderson

18-10-2016
Mathematics

contestada

Mia is three years older than twice her sister brooks age. The sum of their ages is less than 30. What is the greatest Brooke could be

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Bossmann30013 Bossmann30013

18-10-2016

Let Mia's age be m and her sister's age be x m=2x+3 2x+3+x=less than 30 For greatest age we need to take largest number. 3x+3=29 x=26/3 But the options are all in whole numbers, so if 3x+3=27 then x =8

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adaliabrooke adaliabrooke

21-09-2018

I took the test the answer is 8

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