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On Thanking Thursday Carissa ate some cranberries. The next day she couldn't stop thinking about how good the cranberries were and ate seven more cranberries than she had eaten on Thursday.
Each day after that she ate seven more cranberries than the day before. By the following Wednesday night, she had eaten a total of 161 cranberries for the whole week. "How many cranberries did Carissa eat on Thanksgiving Thursday?"

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wegnerkolmp2741o

Answer:

She ate 2 on Thursday

Step-by-step explanation:

Let c = cranberries eaten on Thursday

c+7 = cranberries eaten on Friday

c+14 = sat

c+21 = sun

c+28 = mon

c+35 =tues

c+42 = wed

Add this together

c+c+7+c+14+c+21 +c+28 +c+35 +c+42 = total cranberries = 161

Combine like terms

7c +147 = 161

Subtract 147 from each side

7c+147-147 =161-147

7c =14

Divide by 7

7c/7 = 14/7

c=2

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