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3 years ago

Two friends share 7 cookie equally. How many cookies does each friend get?

Mathematics

2 answers:

tigry1 [53]3 years ago

3 0

3 1/2 because it is an equal amount

allsm [11]3 years ago

3 0

Answer: Each friend get 3.5 cookies.

Step-by-step explanation: Given that two friends share 7 cookie equally.

We are to find the number of cookies that each friend get.

We will be using the UNITARY method to solve the given problem.

Number of cookies shared by 2 friends equally = 7.

Therefore, number of cookies that one friend get will be

$\dfrac{7}{2}=3.5.$

Thus, each friend get 3.5 cookies.

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3. In a certain school, there are 456 girls. Calculate the total number of students

marin [14]

Answer:

3) girls = 24% = 456

let the total number of students be = x

$\frac{24}{100} \times x = 456$

$x = 456 \times \frac{100}{4}$

$x = 1900$

the total number of students is 1900

4) increase = 20%

new salary = 24000 rupees

let his original salary be = y

$\frac{20}{100} \times y = 24000 - y$

$0.2y = 24000 - y$

$0.2y + y = 24000$

$1.2y = 24000$

$y = \frac{24000}{1.2}$

$y = 20000$

his original salary is 20,000 rupees

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2 years ago

34 petri dishes are prepared with a growth medium. 16 are randomly selected and treated with antibiotic A. The other 18 are trea

harina [27]

Answer:

(a) According to the central limit theorem, the distributions of the sample means of sufficiently large samples randomly selected from a population with mean, μ and standard deviation, σ with replacement will be normally distributed

Therefore, given that the size of the population from which the samples were selected (34 petri dishes) is comparable the sizes of the samples, (16 and 18), therefore, the samples are approximately normal

Also given that the petri dishes were prepared with growth medium designed to increase the growth of microorganisms, with an expected amount of growth, the samples therefore came from approximately normal distributions

Step-by-step explanation:

8 0

2 years ago

What is the length of LA?

Reptile [31]

You can solve this by setting up a proportion. 4/6 = x/9. Cross multiply to get 6x=36. Divide both sides by 6 to get x=6.

3 0

2 years ago

Read 2 more answers

Suppose A ={2, 5, 7, 9, 13, 25, 26}. True or False: <br><br> {1,2,3}⊆A

lbvjy [14]

Step-by-step explanation:

n(A) is the number of elements is A, sometimes written |A|. I count 7. n(A)=7

13 is among the elements of A, so 13 ∈ A is TRUE

26 is among the elements of A, so 26 ∉ A is FALSE

10 isn't in A, so 10 ∉ A is TRUE

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2 years ago

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Answer:

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3 years ago