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3 years ago

A farmer collected 12 dozen eggs from chickens. She sold 5/6 of the eggs at the farmers market and have the rest to her friends.

Mathematics

1 answer:

kiruha [24]3 years ago

3 0

The answer is 120. Just do 12·12=144. Then 144·5/6=120

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What is the solution to the system of equations graphed below? y=x+3 y=3x+1

Mademuasel [1]

Answer:

(1, 4)

Step-by-step explanation:

y=x+3

y=3x+1

y=x+3

x+3=3x+1

x=3x-2

-2x=-2

x=1

y=1+3

y=4

8 0

3 years ago

A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to be $28.75 , with a standard

bulgar [2K]

Answer:

Following are the solution to the given choices:

Step-by-step explanation:

Using chebyshev's theorem :

$\to P(|(x-\mu)|\leq k \sigma)\geq 1- \frac{1}{k^2}\\\\here \\ \to \mu=28.75\\\\ \to \sigma=4.44$

In point a)

$\to |(x-\mu)|= |20.17-28.75|=8.58 and \sigma=4.44 \\\\so, \\k= \frac{ |(x-\mu)| }{\sigma}$

$= \frac{8.58}{4.44} \\\\ =1.9 \\\\ =2$

$value= (1- \frac{1}{k^2}) \times 100 \% =75\%$

In point b)

$\to (1- \frac{1}{k^2}) \times 100 \% =84\% \\\\\to (1- \frac{1}{k^2})=0.84 \\\\\to \frac{1}{k^2} =0.16 \\\\\to \frac{1}{k}=0.4\\\\ \to k=2.5 \\\\\to |(x-\mu)| \leq k \sigma \\\\= |(x-\mu)|\leq 2.5 \times 4.44 \\\\ = |(x-\mu)|\leq 1.11 \\\\ = (28.75\pm 11.1) \\\\\to \text{fares lies between}(17.65,39.85)$

In point c)

$\to 99.7 \% \\ lie \ between=28.75 \pm z(.03)\times \sigma \\\\ =28.75\pm 2.97 \times 4.44\\\\=(28.75\pm 13.1)\\\\=(15.65,41.85)\\$

In point d)

using standard normal variate

$x=20.17\\\\ z=-2 \\\\x=37.13\\\\ z=2\\\\\to P(20.17$

8 0

3 years ago

in a school ,the number of boys who play cricket is 3 times as much as a number of boys who play tennis. if 12 boys, who play cr

Ierofanga [76]

Answer:

The number of boys who play tennis is 36.

Step-by-step explanation:

Let the number of boys who play tennis is x.

number of boys who play cricket = y

x = 3 y..... (1)

12 boys plays both cricket and tennis.

According to the question,

x - 12 = y + 1 2

3 y - 12 = y + 12

2 y = 24

y = 12

So, the number of boys who plays tennis is x = 3 x 12 = 36.

8 0

3 years ago

Ivy invests $1000 at a simple interest rate of 7%. How much interest will Ivy earn in 3 years * $2100 $70 $210 I don't know

ololo11 [35]

Answer:$210

Step-by-step explanation: 7% of $1000 = $70 x 3yrs =$210

6 0

2 years ago

Read 2 more answers

An urn contains 1 liter of water while a second urn nearby is empty. after 1/2 of the water in the first urn is emptied into the

Volgvan

We are given that there will be (1/2) a litre after the first pouring, so considering two successive pourings (n and (n+1)) with 1/2 litre in each before the nth pouring occurs:

1/2 × (1/n) = 1/(2n)

1/2 - 1/(2n) = (n-1)/2n

1/2 + 1/(2n) = (n+1)/2n

(n-1)/2n and (n+1)/2n in each urn after the nth pouring

Then now consider the (n+1)th pouring

(n+1)/2n × 1/(n+1) = 1/(2n)

(n+1)/(2n) - 1/(2n) = n/(2n) = 1/2

Therefore this means that after an odd number of pouring, there will be 1/2 a litre in each urn

Since 1997 is an odd number, then there will be 1/2 a litre of water in each urn.

Answer:

1/2

3 0

3 years ago