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Sauron [17]
4 years ago
13

28 girls and 32 boys divided into equal groups, what is the greatest number of groups i can make?

Mathematics
1 answer:
Shtirlitz [24]4 years ago
8 0
Technically, is infinite because you could assign one person to more that one group
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At school assembly four out of the first 10 students are wearing spirt wear. Based on this information, if 500 students were at
8090 [49]
Answer=125
Step by step=
Well if 10 x 50 is 500 (just to show how you get doesn't affect problem) you would simply divide by 4 thus, you get 125
6 0
3 years ago
Let f be a continuous function defined on the interval [0,1] such that f(0) = f(1). Show that there exists a number 0 <= a &l
Leni [432]

Explanation:

In order to prove that affirmation, we define the function g over the interval [0, 1/2] with the formula g(x) = f(x+1/2)-f(x) .

If we evaluate g at the  endpoints we have

g(0) = f(1/2)-f(0) = f(1/2) - f(1) (because f(0) = f(1))  

g(1/2) = f(1) - f(1/2) = -g(0)

Since g(1/2) = -g(0), we have one chance out of three

  • g(0) > 0 and g(1/2) < 0
  • g(0) < 0 and g(1/2) > 0
  • g(0) = g(1/2) = 0

We will prove that g has a zero on [0,1/2]. If g(0) = 0, then it is trivial. If g(0) ≠ 0, then we are in one of the first two cases, and therefore g(0) * g(1/2) < 0. Since f is continuous, so is g. Bolzano's Theorem assures that there exists c in (0,1/2) such that g(c) = 0.  This proves that g has at least one zero on [0,1/2].

Let c be a 0 of g, then we have

0 = g(c) = f(c+1/2)-f(c)

Hence, f(c+1/2) = f(c) as we wanted.

5 0
3 years ago
A salesman traveled 736 miles on 32 gallons of gas.How far can be traveled on 128 gallons of gas?
Vanyuwa [196]
2944
736 divided by 32 = 23
23 x 128= 2944
4 0
3 years ago
Read 2 more answers
Hilary is given the pattern 2, 4, 6, 8, 10,... on her test. She has to find the 50th term of the pattern. To do so she needs to
natka813 [3]

Answer: A recursive formula would be best to describe the pattern.

Step-by-step explanation: The pattern of numbers in the question clearly indicates it is an arithmetic progression, that is, every number is derived by adding a common difference to the previous number. The common difference or d, does not change throughout the sequence.

The common difference in the sequence above is 2. Upon close observation we would observe that by simply adding 2 to a number we can arrive at the next number.

However, using words to describe the pattern of the sequence would not be helpful if we have to find a number very far into the sequence, for example if we were to find the 1000th term of the sequence.

A recursive formula is preferable and would be the best option because of its simplicity in application. The recursive formula to calculate the nth term of an arithmetic progression is given as

nth = a + (n - 1)d

Where n is the term to be calculated in the sequence (in this case n equals 50), a is the first term (2 in this case) and d is the common difference (2 in this case).

The 50th term can be calculated as follows;

nth = 2 + (50 - 1)2

nth = 2 + (49)2

nth = 2 + 98

nth = 100

The calculation above shows how simple it is to calculate the nth term with a recursive formula rather than with verbal descriptions.

An explicit formula also allows you to find the value of any term in a sequence. The explicit formula designates the nth term of the sequence as an expression of n, that is, it defines the sequence as a formula in terms of n. This formula lets us find any other term without knowing other terms.

7 0
3 years ago
Estimate the sum of the decimals below by rounding each summand to the
Dimas [21]

Answer:

18

Step-by-step explanation:

8.355 rounds to 8

1.533 rounds to 2

8.260 rounds to 8

8 + 2 + 8 = 18

7 0
3 years ago
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