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3 years ago

Please help my test is timed!!! will mark brainliest!!!

Mathematics

2 answers:

tekilochka [14]3 years ago

8 0

Answer:

Step-by-step explanation:

nignag [31]3 years ago

4 0

Answer: 2/3

Step-by-step explanation: Rolling a 6 is a 1/6 chance then rolling an odd is 3/6 Or 1/2 add those together to get 2/3

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In a group of 15 children the ratio of the boy : the girl is 2: 3: 5 more girls join the group. Calculate the percentage of boys

marta [7]

Answer:

Percentage of new group boys = 30%

Percentage decrease for the boys = 10%

Increase percent of the girls = 10%

Step-by-step explanation:

Given:

Number of children = 15

Ratio (Boys to Girls) = 2 : 3

Number of more girls join = 5

Find:

Percentage of boys in new group

Percentage decrease for the boys

Increase percent of the girls

Computation:

Number of boys = 15[2/5]

Number of boys = 6

Number of girls = 15[3/5]

Number of girls = 9

Percentage of boys = [6 / 15]100

Percentage of boys = 40%

Percentage of girls = [9 / 15]100

Percentage of girls = 60%

New number of students = 15 + 5

New number of students = 20

New number of boys = 6

New number of girls = 9 + 5 = 14

Percentage of new group boys = [6 / 20]100

Percentage of new group boys = 30%

Percentage of new group girls = [14 / 20]100

Percentage of new group girls = 70%

Percentage decrease for the boys = 40% - 30%

Percentage decrease for the boys = 10%

Increase percent of the girls = 70% - 60%

Increase percent of the girls = 10%

8 0

3 years ago

www.carnegielearning.com if someone can do my assignments on here . ill pay you for the work you do using paypal.

vichka [17]

Answer:

Cant do this because we dont have your username and password and the link you gave us isnt signed into your account sorry

4 0

3 years ago

Leon wants to estimate the proportion of the seniors at his high school who like to watch football. He interviews a simple rando

cupoosta [38]

Answer:

Yes, the random conditions are met

Step-by-step explanation:

From the question, np^ = 32 and n(1 − p^) = 18.

Thus, we can say that:Yes, the random condition for finding confidence intervals is met because the values of np^ and n(1 − p^) are greater than 10.

Also, Yes, the random condition for finding confidence intervals is met because the sample size is greater than 30.

Confidence interval approach is valid if;

1) sample is a simple random sample

2) sample size is sufficiently large, which means that it includes at least 10 successes and 10 failures. In general a sample size of 30 is considered sufficient.

These two conditions are met by the sample described in the question.

So, Yes, the random conditions are met.

5 0

3 years ago

sarah is taking out 14000 four year new car loan with an apr of 6.75% what is the monthly payment for this loan

jeka57 [31]

Answer:

Monthly payment = $18325.6

Step-by-step explanation:

From the question,

P = 14000

t = 4 years

R = 6.75%

To calculate the monthly payment for this loan, let's use the below formula

Amount = P( 1 + 6.75%/12)^4×12

Amount = 14000(1.005625)^48

Amount = 18325.633 dollars

Monthly payment = $18325.6

6 0

3 years ago

How do you divide 6,348 divided by 52, using compatible numbers??

mario62 [17]

122.0769 hopefully I helped you out

8 0

3 years ago