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Alexxx [7]
3 years ago
5

How much does it cost to travel one mile? Round your answer to the nearest A white water rafting company sells tickets for an 18

-mile river trip for $249.Whole dollar.
Mathematics
1 answer:
frosja888 [35]3 years ago
3 0

Answer:

1 mile = $14

Step-by-step explanation:

We know how much the 18-mile trip is for sale, so to know how much 1-mile sale we just have to divide the total amount by the amount of miles

18 miles = $ 249

1 mile =

1 mile = 249 / 18

1 mile = 13.83

To know what the nearest dollar value is, we only have to check if what is after the whole number is May or less than .50

is larger so we round to the largest number that is 14

nearest dollar = $14

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Bad gums may mean a bad heart. Researchers discovered that 82% of people who have suffered a heart attack had periodontal diseas
saveliy_v [14]

Answer:

37.27% probability that he or she will have a heart attack.

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Periodontal disease

Event B: Heart attack

Researchers discovered that 82% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums.

This means that P(A|B) = 0.82

Only 33% of healthy people have this disease.

This means that P(A) = 0.33

Suppose that in a certain community heart attacks are quite rare, occurring with only 15% probability.

This means that P(B) = 0.15

If someone has periodontal disease, what is the probability that he or she will have a heart attack

P(B|A) = \frac{0.15*0.82}{0.33} = 0.3727

37.27% probability that he or she will have a heart attack.

6 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
timurjin [86]

Answer:

f=22 degrees, g=89 degrees

step by step explaination:

When two lines are parallel to one another, and a line is drawn between them, any angle labeled will be equal to the angle on the opposite side of the middle line. This would make f=h, g=d, and even the angle 69 equal to angle e.

5 0
3 years ago
Which of the numbers listed below are solutions to the equation? Check all that apply. x2 = 81 A. 18 B. 40.5 C. -9 D. 162 E. 9 F
Murljashka [212]
X^2 = 81...take the square root of both sides, eliminating the ^2
x = (+-) sqrt 81
x = (+-) 9

answers are : -9 and 9
3 0
3 years ago
Read 2 more answers
12/18/2020
larisa86 [58]

Answer:

,twenty five divided by five

4 0
3 years ago
A video game has been developed whereby the player must earn a certain number of experience points before progressing to the nex
charle [14.2K]
So,

All we have to do is look for patterns.

The levels go up by ones.  However, we have to figure out a pattern for the following set of numbers:
1, 7, 15, 25

Notice:
1 + 6 = 7
7 + 8 = 15
15 + 10 = 25

The amount of XP added to the requirement goes up by 2 more than the previous XP requirement.

Therefore, Level 5 will need 25 + 12 = 37 XP.

Level 6 will need 37 + 14 = 51 XP.

Finally, Level 7 will require 51 + 16 = 67 XP.
8 0
3 years ago
Read 2 more answers
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