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2 years ago

7

Adriana and Farid are both selling cookie dough for a fundraiser. Although Adriana has already sold 9 tubs, Farid hasn't sold an

y yet. If Adriana starts selling 7 tubs per day and Farid begins selling 8 tubs per day, they will eventually sell the same amount of cookie dough. How many tubs will each sell? How many days will that take?
Adriana and Farid will each sell ____tubs of cookie dough in ____days.

1 answer:

Romashka-Z-Leto [24]2 years ago

8 0

Adriana and Farid will each sell 72 tubs of cookie dough in 9 days

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We know that

Sum of convergent series is also a convergent series.

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$\sum_{k=0}^\infty a(r)^k$

If the common ratio of a sequence |r| <1 then it is a convergent series.

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$S_n=9+\frac97+\frac{9}{7^2}+\frac9{7^3}+.......$

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