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Irina18 [472]
2 years ago
7

you have 3 times as many pencils as your friend , if you have 21 pencils how many does your friend have ?

Mathematics
2 answers:
Fofino [41]2 years ago
8 0

Answer:

7

Step-by-step explanation:

zysi [14]2 years ago
8 0
7.
this is because 21 divided by 3 is 7.
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Is it scalene isosceles or equilateral then write acute obtuse or right thx
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3 years ago
Find the number of primes less than 190 using the principle of inclusion-exclusion.
Troyanec [42]

The number of primes less than 190 using the principle of inclusion-exclusion are 42

<h3>Principle of inclusion- exclusion</h3>

The principle of inclusion-exclusion is known as a counting technique that computes the number of elements satisfying at least one of several properties and guaranteeing that the numbers are not counted twice.

Prime numbers are numbers only divisible by 1 and itself.

Prime numbers less than 190 are:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181

They are 42 in number

Therefore, the number of primes less than 190 using the principle of inclusion-exclusion are 42

Learn more about prime numbers here:

brainly.com/question/874965

#SPJ11

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2 years ago
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there are five students in the lunch line. May is 48 inches tall, Ann is 45 inches tall ,Con is 42 inches tall ,Bell is 52 inche
kirill115 [55]
Bell is the tallest person at 52 inches, Con is the shortest person at 42 inches. So  54 - 42 = 12
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Maria built a tool that checks the rate of flow of liquid from one container to another. The tool consists of a cylindrical cont
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Answer:

I think it is  c 266.3 cubic centimeters

Step-by-step explanation:

Hope this helps

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3 years ago
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