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Natalka [10]
3 years ago
7

There were 632 animals gathered at the river. A herd of 187 elephants and 266 zebras left the river area. How many animals were

still at the river?
Mathematics
1 answer:
Orlov [11]3 years ago
3 0

Answer:

179 animals were still at the river

Step-by-step explanation:

There were 632 animals at the river.

A herd of 187 elephants and 266 zebras left the river area.

This means that 187 + 266 = 453 animals left the river area.

Remaining:

632 - 453 = 179

179 animals were still at the river

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Prove that an integer consisting of 3n ones is divisible by 3n (e.g. 111 is divisible by 3, 111,111,111 is divisible by 9, etc.)
mote1985 [20]

For proof of 3 divisibility, abc is a divisible by 3 if the sum of abc (a + b + c) is a multiple of 3.

<h3>Integers divisible by 3</h3>

The proof for divisibility of 3 implies that an integer is divisible by 3 if the sum of the digits is a multiple of 3.

<h3>Proof for the divisibility</h3>

111 = 1 + 1 + 1 = 3  (the sum is multiple of 3 = 3 x 1)  (111/3 = 37)

222 = 2 + 2 + 2 = 6 (the sum is multiple of 3 = 3 x 2)  (222/3 = 74)

213 = 2 + 1 + 3 = 6 ( (the sum is multiple of 3 = 3 x 2)  (213/3 = 71)

27 = 2 + 7 = 9  (the sum is multiple of 3 = 3 x 3)  (27/3 = 9)

Thus, abc is a divisible by 3 if the sum of abc (a + b + c) is a multiple of 3.

Learn more about divisibility here: brainly.com/question/9462805

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5 0
2 years ago
In ΔTUV, u = 41 cm, ∠T=85° and ∠U=9°. Find the length of t, to the nearest 10th of a centimeter.
german

Answer:

261.1

Step-by-step explanation:

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7 0
3 years ago
Please help! I do not understand!
Sergio [31]
Your answer would be approximately 254.5 if you round since 9^2 times pie you would get such
7 0
3 years ago
60 marks out of 75 full marks<br>express in percent<br><br>​
DochEvi [55]
80 percent

Explanation:
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3 0
3 years ago
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Connor made 9 shapes with straws. Each shape had 5 straws. Conor used 15 more straws to make more shapes. What is the total numb
ladessa [460]

Answer:

Option D - 60

Step-by-step explanation:

Given : Connor made 9 shapes with straws. Each shape had 5 straws. Conor used 15 more straws to make more shapes.

To find : What is the total number of straws Connor used to make all the shapes?              

Solution :

To make 1 shape Connor required 5 straws.

To make 9 shape connor required 9\times 5=45 straws.

Now, there were 45 straws.

Conor used 15 more straws to make more shapes.

The total number of straws Connor used to make all the shapes are

45+15=60

Therefore, Option D is correct.

Cannor used 60 straws to make shapes.

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3 years ago
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