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blondinia [14]
2 years ago
7

Peggy earned $20 for each lawn she mowed last summer. This summer, she raised her price to $23 per lawn. What is the percent inc

rease of Peggy’s charges?

Mathematics
1 answer:
anyanavicka [17]2 years ago
5 0

Answer:

15 percent

Step-by-step explanation: You will substract the new value from the old value.

23-20

Now you will get the difference between them and divide that by the original amount.

3/20

This will equal 0.15 in which you now multiply by 100

15 percent

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A right prism is shown below.
insens350 [35]

Answer:

290 8s the answer because 15 mutiplyed by 8 plus 17 multiplyed by 10 give you 290

7 0
2 years ago
Read 2 more answers
A nonprofit organization sent mailing labels along with a request for donations to a random sample of 75,000 potential donors on
Law Incorporation [45]

Answer:

Check the explanation

Step-by-step explanation:

The null and alternative hypotheses in symbols and words are as follows:

: p ≤ 0.06 (There has been no change in the contribution rate due to addition of the mailing labels)

: p > 0.06 (The addition of the mailing labels has increased the contribution rate)

Test Statistics

The following information is provided: The sample size is N = 75000, the number of favorable cases is X = 5625, and the sample

The z-statistic is computed as follows:

- P_0 (1 -

Test statistic z = 17.297

P-value

P-value corresponding to z = 17.297 for a two tailed test is obtained using standard normal table.

p-value = 0.0000

90% Confidence Interval Calculation

Kindly check the attached image below.

Conclusion

Since p-value = 0.0000 < α = 0.05, we reject null hypothesis .

At 0.05 significance level, there is enough evidence to conclude that the addition of the mailing labels has increased the contribution rate.

Since the 90% confidence interval (0.073, 0.077) does not contain the hypothesized value 0.06, the result is significant and we reject null hypothesis.

In other words, at 0.10 significance level, there is enough evidence to conclude that the addition of the mailing labels has increased the contribution rate.

4 0
3 years ago
PLEASE HELP QUICK !!
babunello [35]

Step-by-step explanation:

given f(x) = 2/x and g(x) = 2/x

f(g(x)) = 2/(g(x)) = 2/2/x = x/2 × 2 = x

g(f(x)) = 2/(f(x)) = 2/2/x = x/2 × 2 = x

therefore they are inverses

since f(g(x)) = g(f(x)) = x.

4 0
3 years ago
Are 3x+1 and 3x equivalent Yes or No<br><br> Explain why they are or aren't equivalent!!!
snow_tiger [21]

Answer:

NO

Step-by-step explanation:

3x + 1 and 3x are different

Step 1:  Lets put some numbers instead of x

x = 1

y = 3x + 1

y = 3(1) + 1

y = 4

y = 3x

y = 3(1)

y = 3

SEE IT IS DIFFERENT.

Attached are the graphs

4 0
3 years ago
Micheal can eat 24 hot dogs in 6 minutes for a hot dog eating contest he wants to know how many minutes it would take him to eat
Ksju [112]

It would take him 11 minutes

He is currently eating 4 a minute because 24 divided by 6 is 4 and if you divide 44 by 4 you get eleven.

7 0
3 years ago
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