2 years ago

a shop sells sweets in bags of 7 and 20 what is the largest number of sweets that cannot be purchased exactly?

1 answer:

8 0

By the Frobenius Coin Theorem, also known as the Postage Stamp Theorem or the Chicken McNugget Theorem, the maximum amount that cannot be represented as a sum of multiples of two relatively prime numbers a and b (numbers that have GCF of 1) is ab-a-b. Plugging 7 and 20 in, our answer is 7*20-7-20, or 140-27, or 113.

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Answer:

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Step-by-step explanation:

8 + x = 4x +2

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Group like terms:

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Rudiy27

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2 years ago

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guajiro [1.7K]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

The life expectancy (in hours) of an electric bulb is normally distributed with a mean of 5000 and a standard deviation of 1000.

Sergeu [11.5K]

Answer:

P(z>1.3) = 0.9032

Step-by-step explanation:

We are given:

Mean = 5000

Standard deviation = 1000

x = 6300

P(x>6300)=?

z-score =?

z-score = x- mean/standard deviation

z-score = 6300 - 5000/1000

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P(z>1.3) = 0.9032

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3 years ago