yenirey yenirey

20-09-2016
Mathematics

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An orange has 20 fewer calories than a bannana. if 7 bananas have the same number of calories as 9 orange, how many calories are in a bannana?

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keikoelise keikoelise

20-09-2016

7x=9(x-20)
7x=9x-180
2x=180
x=90
90 calories per banana

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