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Simora [160]
3 years ago
11

3 Danica simplified tre following expression,

Mathematics
1 answer:
Scrat [10]3 years ago
7 0

Answer:

The answer is 42

Danica in the third step suddenly transformed 32 into 9.

so continuing from there.....

20-10+32

10+32

42

<Hope it helped!~❤️>

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What is the slope of a line that is parallel to the line joining (7,-5) and (-5,7)
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Answer:

Step-by-step explanation:

If two lines are parallel then they will have the same slope. So all you need to do is find the slope of the line that joins the two given points. You can use the slope formula \frac{y_2-y_1}{x_2-x_1}. You can also graph the two points and use rise over run. \frac{7-(-5)}{-5-7} =\frac{12}{-12}=-1

8 0
3 years ago
Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What number does she say?
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There were 63 equal piles of plantain fruit put together and 7 single fruits. They were divided evenly among 23 travelers. What
antiseptic1488 [7]

Answer:

There are 28 fruits in each pile.

Step-by-step explanation:

We are given the following in the question:

Let x denote the number of fruits in each pile and y denote the number of fruits that every traveler receive.

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63x + 7 = 23y\\63x-23y = -7

We obtain the greatest common divisor of (63,-23).

The greatest common divisor f 63 and -23 is 1.

Therefore, there exist \alpha,\beta such that

-23\alpha+63\beta=1

By applying extended Euclidean Algorithm, we have,

1 = (1\times 6)+(-1\times 5)\\1 = (1\times 17)+(3\times 6)\\1 = (3\times 23)+(-4\times 17)\\1 = (-4\times 40)+(7\times 23)\\1 = (7\times 63)+(-11\times 40)\\1 = (-11\times -23)+(-4\times 63)

1 = (-11\times -23) + (-4\times 63)

Multiplying -7 on both sides, we get,

-7 = (77\times -23) + 28\times 63)

Thus, we get,

x = 28\\y=77

Thus, there are 28 fruits in each pile.

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4 years ago
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Answer:

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Step-by-step explanation:

im smart

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