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3 years ago

Can someone please help me with these questions!

2 answers:

7 0

1. Buddy is 1 out of 11 students in the classroom who are spreading Christmas Cheer. What percentage of the class is he?

He is 9% of the class that is spreading Christmas cheer.

2. Santa's sleigh has a Clausometer. The highest measure is 100%. If the Clausometer measured at 45. What would this number be represented as a decimal?

If the clausometer measured at 45 then this number as a decimal will be represented as 0.45.

3. The Jack-in-the-box toys had to be tested! The toys worked 0.985 of the time! What percentage of time did they work?

They worked 98.5% of the time

4. The guys handing out advertisement flyers have handed out 4/5 of their total flyers. What percentage of flyers has been handed out?

80% of flyers have been handed out.

5. When the lights go out in the store at night, there is a 15% off sign hanging up by the makeup counter. What is this number as a decimal and a fraction in simplest form?

This number as a decimal and a fraction in simplest form is 3/20 and 0.15.

Iteru [2.4K]3 years ago

7 0

Answer:

1. 9 $\frac{1}{11}$ %

2. 0.45

3. 98.5%

4. 80%

5. Decimal: 0.15, Fraction: $\frac{3}{20}$

Step-by-step explanation:

When calculating percentage, turn the question to a fraction and multiply the fraction by 100%.

When calculating decimal, turn the question to a fraction out of 100, and turn it into a decimal.

When calculating a fraction in its simplest form, turn the question to a fraction and simplify it.

1. (Percentage)

Fraction: $\frac{1}{11}$

Percentage: $\frac{1}{11}$ × 100% = 9 $\frac{1}{11}$ %

2. (Decimal)

Fraction: $\frac{45}{100}$

Decimal: 45 ÷ 100 = 0.45

3. (Percentage)

Fraction: 0.985 = $\frac{985}{1000}$

Percentage: $\frac{985}{1000}$ × 100% = 98.5%

4. (Percentage)

Fraction: $\frac{4}{5}$

Percentage: $\frac{4}{5}$ × 100% = 80%

5. (Decimal)

Fraction: 15% = $\frac{15}{100}$

Decimal: 15 ÷ 100 = 0.15

5. (Fraction)

Fraction: $\frac{15}{100}$

Simplest form: $\frac{15}{100}$ = $\frac{3}{20}$ (Divide both numerators and denominators by 5)

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Ben rolls two number cubes. What is the probability that the sum of the numbers he rolls is less than 6

kotegsom [21]

The numbered cubes might be referring the dice. We know that there are 36 ways of dice will occur.
Take the unique list of the following pair for which the sum is less than 6, and these are
(1,1) (1,2) (1,3) (1,4) (2,1) (2,2) (2,3) (3,1) (3,2) (4,1)
Therefore there are 10 possible ways we could get.
In probability, it is a ratio of the successful outcomes over the total number of possible outcomes.
P = 10/36 = 5/18

8 0

3 years ago

Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably norma

Nataliya [291]

Answer:

The degrees of freedom is 11.

The proportion in a t-distribution less than -1.4 is 0.095.

Step-by-step explanation:

The complete question is:

Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably normally distributed, and that a t-statistic will be used for inference about the difference in sample means. State the degrees of freedom used. Find the proportion in a t-distribution less than -1.4 if the samples have sizes 1 = 12 and n 2 = 12 . Enter the exact answer for the degrees of freedom and round your answer for the area to three decimal places. degrees of freedom = Enter your answer; degrees of freedom proportion = Enter your answer; proportion

Solution:

The information provided is:

$n_{1}=n_{2}=12\\t-stat=-1.4$