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3 years ago

15

The electric bill in May was $215.00. In June the bill was $274.00. What is the percent of increase rounded to the nearest tenth

? A. 21.5% B. 28.5%. C. 27.4%. D. 26.7%

2 answers:

Whitepunk [10]3 years ago

5 0

Answer:

The answer is C. 27.4% Hope this helps!

mamaluj [8]3 years ago

3 0

Answer:

C.27.4

Step-by-step explanation:

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Jillian measured the distance around a small fish pond as 27 yards. Which would be a good estimate for the distance across the p

Anton [14]

14 because it is half of the width around the pond.

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3 years ago

Given a group of 17 people in a party, we consider the number of times a person shakes hand with someone else. Show that there i

aev [14]

Answer:

Step-by-step explanation:

Given that there is a group of 17 people in a party. There takes place a number of hand shakes between them.

To show that there is always two people who shake hands with the same total number of people.

If possible let each person did a different number of handshake.

We know that since there are 17 people, there cannot be more than 16 hand shakes for any one in the group.

Hence if different hand shakes must be 0,1,2...16

Consider the last person having 16 hand shakes. He has shaken hand with each other person in the group thus making it clear that no one could have done 0 hand shakes. Since we get a contradiction, our assumption was wrong. That is, there is always two people who shake hands with the same total number of people.

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3 years ago

Use the given values of n and p to find the minimum usual value μ - 2σ and the maximum usual value μ + 2σ. Round your answer to

fenix001 [56]

Given Information:

number of trials = n = 1042

Probability of success = p = 0.80

Required Information:

Maximum usual value = μ + 2σ = ?

Minimum usual value = μ - 2σ = ?

Answer:

Maximum usual value = 859.51

Minimum usual value = 807.78

Step-by-step explanation:

In a binomial distribution, the mean μ is given by

μ = np

μ = 1042*0.80

μ = 833.6

The standard deviation is given by

σ = √np(1 - p)

σ = √1042*0.80(1 - 0.80)

σ = √833.6(0.20)

σ = 12.91

The Maximum and Minimum usual values are

μ + 2σ = 833.6 + 2*12.91

μ + 2σ = 833.6 + 25.82

μ + 2σ = 859.51

μ - 2σ = 833.6 - 25.82

μ - 2σ = 807.78

Therefore, the minimum usual value is 807.78 and maximum usual value is 859.51

8 0

4 years ago

Help! I will mark you the brainest !! ☺️☺️

Marizza181 [45]

Answer:

Part 1) $0.675\%$

Part 2) $475\%$

Part 3) $8\%$

Part 4) $\frac{67}{20}$

Part 5) $2.65$

Step-by-step explanation:

Part 1) Write as a percent 0.00675

we know that

To write a number as a percent, multiply the number by 100

so

$0.00675*100=0.675\%$

Part 2) Write as a percent 4 3/4

Convert mixed number to an improper fraction

$4\frac{3}{4}=\frac{4*4+3}{4}=\frac{19}{4}$

we know that

To write a fraction as a percent, multiply the fraction by 100

$\frac{19}{4}*100=19*25=475\%$

Part 3) Write as a percent 2/25

we know that

To write a fraction as a percent, multiply the fraction by 100

$\frac{2}{25}*100=2*4=8\%$

Part 4) write as a fraction 335%

we know that

$335\%=\frac{335}{100}$

Simplify

Divide by 5 both numerator and denominator

$\frac{335}{100}=\frac{67}{20}$

Part 5) Write as a decimal 265%

we know that

$265\%=\frac{265}{100}=2.65$

3 0

3 years ago

Plzzzzzzzz help right answer gets brainly

Lelechka [254]

Answer:

A

Step-by-step explanation:

7 0

3 years ago