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3 years ago

12 1/7 + 3 6/11 add simply if possible will mark braniest been stuck for 25 min on this show ur work

Mathematics

2 answers:

weqwewe [10]3 years ago

3 0

$12 \frac{1}{7} \: + \: 3 \frac{6}{11} \: = \: \frac{7 \times 12 \: + \: 1}{7} \: + \: \frac{11 \times 3 \: + \: 6}{11} \: = \: \frac{85}{7} \: + \: \frac{39}{11} \: = \: \frac{85 \times 11 \: + \: 39 \times 7 }{7 \times 11} \: = \: \frac{935 \: + \: 273}{77} \: = \: \frac{1208}{77}$

True [87]3 years ago

3 0

1st think about the fractions 1/7+6/11
1/7 1×11=11 7×11=77 so The 1st fraction is 11/77
6/11 6×7=42 11×7=77 So the 2nd fraction is 42/77 Now you have a like Denominators Now add the numerators That would be the top numbers you add together Not the bottom 53/77 Now add to whole numbers together 12+3=15 Then put your fraction with that That is your answer 15 53/77

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15 is 10 % of what number

Len [333]

15*10=150

15 is 10% of 150

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3 years ago

a survey of 504 citizens found that 378 of them favor a new bill introduced by the city. We want to find a 95% confidence interv

Viefleur [7K]

The lower limit of the interval is 0.712 if the survey of 504 citizens found that 378 of them favor a new bill introduced by the city.

<h3>What is a confidence interval?</h3>

It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.

We have:

A survey of 504 citizens found that 378 of them favor a new bill introduced by the city.

Sample proportion = p = 378/504 = 0.75

q = 1 - p = 1 - 0.75 = 0.25

$\rm SD = \sqrt{\dfrac{pq}{n}}$

$\rm SD = \sqrt{\dfrac{0.75\times0.25}{504}}$

SD = 0.01928

For 95% confidence interval Z value = 1.96

Lower limit = 0.75 - 1.96(0.01928)

= 0.712

Thus, the lower limit of the interval is 0.712 if the survey of 504 citizens found that 378 of them favor a new bill introduced by the city.

Learn more about the confidence interval here:

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3 0

2 years ago

163 A certain pet store has only cats and dogs. The ratio of the number of cats to the number of dogs in the pet store is 2:3. 1

rusak2 [61]

Answer:120 animals are in the pet store

Step-by-step explanation:

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3 years ago

The income of a person is Rs 18,000 per month .due to the exemption of the income of Rs 1,40,000 per year, he has paid Rs 11,400

svp [43]

If the income of a person is Rs 18,000 per month , the exemption of the income is Rs 1,40,000 per year, If he has paid Rs 11,400 as an income tax at the end of the year . The percent per annum of the tax paid is: 15%.

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</h3><h3>Tax percentage</h3>

Given:

Income of a person=Rs 18,000 per month

Exemption income per year=140,000

Income tax paid=11,400

First step is to the calculate the Income per year since the income of a person is Rs 18,000 per month

Income per year= 18,000 ×12

Income per year=216,000

Second step is to calculate the taxable income

Taxable income=216,000-140,000

Taxable income=76,000

Third step is to calculate the tax Percentage per annum

Tax percentage=11,400/76,000×100

Tax percentage=15%

Therefore If he has paid Rs 11,400 as an income tax at the end of the year . The percent per annum of the tax paid is: 15%.

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Learn more about tax percentage here:brainly.com/question/24274714

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7 0

2 years ago

What is the range of the function? (5,9) (1,0) (4,-7) (6,-1)

gogolik [260]

The range of the function is {-7, -1, 0, 9}.

These are all of the y values in the ordered pairs, which is the definition of what range is.

5 0

3 years ago