4. Bir simitçi, simitlerini üçerli ve dörderli grupladi-

Mathematics

1 answer:

koban [17]3 years ago

5 0

Answer:

Step-by-step explanation:

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If we list all the natural numbers below 20 that are multiples of 7 or 11, we get 7, 11 and 14. The sum of these multiples is 32

velikii [3]

Number of multiples of 7 up to 1337: $\left\lfloor\dfrac{1337}7\right\rfloor=191$
Number of multiples of 11 up to 1337: $\left\lfloor\dfrac{1337}{11}\right\rfloor=121$
Number of multiples of 77 up to 1337: $\left\lfloor\dfrac{1337}{77}\right\rfloor=17$

This means there are $191+121-17=295$ distinct multiples of 7 *or* 11 up to 1337.

The sum of these multiples is

$\displaystyle\sum_{k=1}^{191}7k+\sum_{k=1}^{121}11k-\sum_{k=1}^{17}77k$

which can be computed using the well-known formula,

$\displaystyle\sum_{k=1}^nk=\dfrac{n(n+1)}2$

So you have

$\displaystyle\sum_{k=1}^{191}7k+\sum_{k=1}^{121}11k-\sum_{k=1}^{17}77k=7\dfrac{191\times192}2+11\dfrac{121\times122}2-77\dfrac{17\times18}2=197762$

8 0

3 years ago

Marrieds pours 1 1/2 cups of punch in each glass.how many fluid ounces is each serving

topjm [15]

Each serving is 12 fluid ounces. One cup is 8oz, one and a half cups is 12oz.

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3 years ago

Write the ratio as a fraction in lowest terms. Be sure to make necessary conversions:

agasfer [191]

Answer:12533

Step-by-step explanation:

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3 years ago

HELPP ITS A 60 min test and a alr took up most of my time watching t|k tok :} so now i have 20 mins left I will Give Brainlest!

soldi70 [24.7K]

Answer:

The "inverse operation" is just a way of saying "what do you do to isolate the variable". In this case, we isolate y, so we have to move all terms to the right side. To do that, we subtract 12 from each side to there will only be "y" on the left side.

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3 years ago

Eric has two rock samples. One has a mass of 600 grams, and the other has a mass of 1 gram. He recorded the total mass as 7 kilo

lina2011 [118]

The real answer would be 0.601 kilograms.
1 gram plus 600 grams would equal 601 grams. That then is divided by 1000 because one kilogram equals 1000 grams.
Once you divide 601 and 1000, you then get 0.601

8 0

3 years ago

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