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SOVA2 [1]
2 years ago
8

A new obstacle course is home to several new types of challenging obstacles. One such obstacle is traversing a 15-stair staircas

e. To make it more challenging, the stairs are not uniformly spaced. Rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. What is the total vertical distance traveled ascending and descending the entire 15-stair staircase?
Mathematics
2 answers:
Airida [17]2 years ago
8 0

Answer: There is total vertical space of 494 feet traveled ascending and descending the entire 15-Stair staircase .

Step-by-step explanation:

Since we have given that

Number of stairs in a staircase is formed = 15

Vertical space between consecutive stairs for the first 10 stairs = 113 feet

Vertical space between consecutive stairs for the last 5 stairs = 134 feet

Total vertical distance traveled ascending  the entire 15-stair staircase is given by

113+134\\\\=247\ feet

Total vertical distance traveled ascending and descending the entire 15-stair staircase is given by

247\times 2=494\ feet

Hence, there is total vertical space of 494 feet traveled ascending and descending the entire 15-Stair staircase .

spayn [35]2 years ago
8 0

Answer:

The total vertical distance traveled ascending and descending the entire 15-stair staircase is 44.167 feet.

Step-by-step explanation:

It is given that the vertical space between consecutive stairs for the first 10 stairs is

1\frac{1}{3}=\frac{3+1}{3}=\frac{4}{3}

Total vertical distance for first 10-stairs is

\frac{4}{3}\times 10=\frac{40}{3}

The vertical space for the last 5 stairs is

1\frac{3}{4}=\frac{4+3}{4}=\frac{7}{4}

Total vertical distance for 5-stairs is

\frac{7}{4}\times 5=\frac{35}{4}

The total vertical distance of 15-stairs is

Total=\frac{40}{3}+\frac{35}{4}=\frac{265}{12}

Total vertical distance traveled ascending and descending the entire 15-stair staircase is

\frac{265}{12}\times 2=\frac{265}{6}\approx 44.167

Therefore the total vertical distance traveled ascending and descending the entire 15-stair staircase is 44.167 feet.

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Among 21- to 25-year-olds, 29% say they have driven while under the influence of alcohol. Suppose that three 21- to 25-year-olds
Vilka [71]

Answer:

0.6421

Step-by-step explanation:

In this case we have 3 trials and we have 2 options for each one. The driver has or hasn't been under alcohol influence. The probability that the driver has is 0.29 and the probabiility that the driver hasn't is 1 - 0.29 = 0.71

each trial is independent because we are assuming that the population of drivers in between 21 and 25 years old is very big.

The probability that one of them was under alcohol influence can be found by finding the probability that non of them was under alcohol influence because:

1 = p(x = 0) + p(x ≥ 1)

p(x ≥ 1) = 1 - p(0)

The probability that none of them was under alcohol influence is going to be:

0.71×0.71×0.71 = 0.3579

The probability of finding at least one driver that has been under alcohol influence is:

0.6421

4 0
2 years ago
The points (3, 24) and (7, 56) represent points of a function where y, the number of photographs, varies directly with x, the nu
bogdanovich [222]

Answer:

Option A 50-page photo album holds 400 photographs.

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

step 1

<em>Find the value of k</em>

For the point (3,24)

x=3,y=24

k=y/x

k=24/3=8

The equation is equal to

y=8x

step 2

<em>Verify each statement</em>

case A) 50-page photo album holds 400 photographs.

For x=50

substitute in the equation

y=8(50)=400 -----> is correct

case B) 80-page photo album holds 560 photographs.

For x=80

substitute in the equation

y=8(80)=640 -----> is not correct

case C) 100-page photo album holds 8,000 photographs.

For x=100

substitute in the equation

y=8(100)=800 -----> is not correct

case D) 900-page photo album holds 8,400 photographs.

For x=900

substitute in the equation

y=8(900)=7,200 -----> is not correct

9 0
2 years ago
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What is the median of these numbers 2.4,2.8,2.3,2.9,2.9
liberstina [14]

Answer:

2.8

Step-by-step explanation:

x2.3, x2.4, 2.8, x2.9, x2.9

4 0
1 year ago
what is the typical distance a moped can be driven on a single tank of gas? a statistical question/ explain your reasoning
Svet_ta [14]

Answer:

Step-by-step explanation:

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2 years ago
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If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charg
Drupady [299]

Answer:

a) Total cost = 49 + 38.75m

b) Total cost = 149 + 38.75m

c) The graphs of the lines are parallel and both has slope of - 2.5

d)Difference in total cost = $132.5

Step-by-step explanation:

Total cost , TC = Initial membership fee + monthly charges

a) TC = 49 + 38.75m

b)TC = 149 + 38.75m

d) 149 + 38.75(6months) = 381.5

49 + 38.75(12months) = 514

Difference in total cost = 514 -381.5 = $132.5

7 0
2 years ago
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