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3 years ago

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:

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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3+5i/-2+3i perform operation

melisa1 [442]

Answer:

$\dfrac{9}{13}-\dfrac{19}{13}i$

Step-by-step explanation:

Remember $i^2=-1$

You are given the fraction $\dfrac{3+5i}{-2+3i}$

First, multiply the numerator and the denominator by -2-3i:

$\dfrac{3+5i}{-2+3i}=\dfrac{(3+5i)(-2-3i)}{(-2+3i)(-2-3i)}=\dfrac{(3+5i)(-2-3i)}{(-2)^2-(3i)^2}=\dfrac{(3+5i)(-2-3i)}{4-9i^2}=\dfrac{(3+5i)(-2-3i)}{4+9}$

This gives you 13 in denominator, now multiply two complex numbers in numerator:

$(3+5i)(-2-3i)=-6-9i-10i-15i^2=-6-19i+15=9-19i$

Thus, the initial fraction is

$\dfrac{9-19i}{13}=\dfrac{9}{13}-\dfrac{19}{13}i$

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3 years ago

Bob did chores for his neighbor. The first day he earned $8. Then he earned $10 a day for

Bumek [7]

Answer: $128

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Step-by-step explanation: