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Tamiku [17]
2 years ago
6

The table shows the results of a survey of seventh-grade students in the lunch-line

Mathematics
1 answer:
Anni [7]2 years ago
5 0

Answer:

D

Look at the picture. :)

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Ms. Watts is a famous motivational speaker. She travels across the country by jet and gives an average of ten presentations a we
expeople1 [14]

Answer:

5 weeks

Step-by-step explanation:

We are told that the auditorium holds an average of 1000 people each.

And that she charges $40 each.

Thus;

Total income for each speech is;

1000 × 40 = $40000

Since she gives an average of 10 presentations each week.

Total income per week = 10 × 40000 = $400,000

Now,the expenses she makes for each speech weekly is;

Renting auditorium = $15000

Motel, jet expenses, support personnel = $75000

Thus,

Total expenses per week = 15000 + 75000 = $90000

Now, total profit per week is;

P_weekly = Total income per week - Total expenses per week

P_weekly = $400000 - $90000

P_weekly = $310000

There are 52 weeks in a year, thus, profit in a year is;

P_yearly = 52 × 310000 = $16120000

Now, we want to find out how long it took her to make $1,400,000 a year.

We know that;

$16120000 was achieved in 52 weeks

Thus;$1,400,000 will be achieved in;

(1400000 × 52)/16120000 = 4.52 weeks approximately 5 weeks.

4 0
3 years ago
Suppose a random variable, x, arises from a binomial experiment. If n = 25, and p = 0.85, find the variance. Round answer to 4 d
Tamiku [17]

Answer:

<u><em>a) P(X=1) = 0.302526</em></u>

<u><em>b) P(X=5) = 0.010206</em></u>

<u><em>c) P(X=3) = 0.18522</em></u>

<u><em>d) P(X≤3) = 0.92953</em></u>

<u><em>e) P(X≥5) = 0.010935</em></u>

<u><em>f) P(X≤4) = 0.989065</em></u>

<u><em></em></u>

<u><em></em></u>

<u><em>If helpful, please mark as brainliest! =)</em></u>

8 0
3 years ago
Sarah lives 3 9/10 miles from school. Her classmate, Roger, lives 1 mile from school. How much farther from school does Sarah li
Veseljchak [2.6K]

Answer:

2 9/10

Step-by-step explanation:

subtract the 1 mile from the 3 9/10 mile. kinda like 3-1 but then you put the other stuff on the end (9/10)

I'm pretty sure this is the correct answer

7 0
2 years ago
what is the standard deviation of the data set given below 2 3 6 9 10 A: 10 B: square root of 10 C: square root of 12.5 D: squar
AleksAgata [21]
The standard deviation of the set of values (2, 3, 6, 9, 10) is <span>square root of 12.5 (</span>\sqrt{12.5}) therefore OPTION C

6 0
3 years ago
Read 2 more answers
A cylinder has a height of h inches and a diameter of 3 inches.
professor190 [17]

Answer:

Option A

Step-by-step explanation:

since V = p×r^2×h

r = 3/2

hence, option a is correct.

6 0
2 years ago
Read 2 more answers
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