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Kobotan [32]
3 years ago
14

Nancy wants to buy some granola, which she eats for breakfast almost every day. Which is likely the most cost-effective option?

Mathematics
2 answers:
Kitty [74]3 years ago
8 0

Answer:

C

Step-by-step explanation:

- The costs for buying any consumer product in bulk vs single items usually differs. This is the strategy used by companies to promote their product to increase their sales.

- The "promotion costs" usually applied to a product in bulk will have less cost per item as compared to any single item that is purchased.

- So it is more cost-effective, assuming that the rate of consumption of the product remains same i.e ( she eats for breakfast almost every day ), to purchase an item in bulk.

- So buying a pack of five would most cost effective for Nancy in the long run. i.e ( monthly or annually, etc ).  

Julli [10]3 years ago
5 0

Answer:

The answer is A.

Step-by-step explanation:

Because usually for more it will cost a lot more than just buying a single pack 5 times.

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x = total amount split between Adam and Tom.

since we know the total amount split between both in a 18 : 17 ratio is "x", let's divide "x" by (18 + 17) and distribute accordingly to get the amount of each.

\stackrel{Adam~received}{18\cdot \cfrac{x}{18+17}}\qquad \qquad \stackrel{Tom~received}{17\cdot \cfrac{x}{18+17}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that Adam got "5" more}}{ \stackrel{Adam}{18\cdot \cfrac{x}{18+17}}~~ = ~~\stackrel{Tom}{17\cdot \cfrac{x}{18+17}~~ + ~~5} }\qquad \implies \qquad \cfrac{18x}{35}~~ + ~~\cfrac{17x}{35}+5

\stackrel{\textit{multiplying both sides by }\stackrel{LCD}{35}}{35\left( \cfrac{18x}{35} \right)~~ = ~~35\left( \cfrac{17x}{35}+5 \right)}\implies 18x~~ = ~~17x+175\implies \boxed{x =175} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{Tom~received}{17\cdot \cfrac{x}{18+17}}\implies \cfrac{17(175)}{35}\implies \blacktriangleright 85 \blacktriangleleft

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2 years ago
You start driving north for 21 miles, turn right, and drive east for another 20 miles.
Wewaii [24]

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Step-by-step explanation:

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hope this helps :)

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Well the word “sum” means to add.
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Step-by-step explanation:

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