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shutvik [7]
3 years ago
11

Lin and Andre start walking toward each other at the same time from opposite ends of the 22-mile walking trail. Lin walks at a s

peed of 2.5 miles per hour. Andre walks at a speed of 3 miles per hour
Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0

Answer:

Step-by-step explanation:

let they meet after t hours

2.5t+3t=22

5.5 t=22

55/10 t=22

t=22×10/55=4 hours

after 4 hours they meet.

Genrish500 [490]3 years ago
3 0

Answer:

they would meet after 4 hour since the start of their journey

Step-by-step explanation:

Supposing we have to calculate in what time will they cross each other

Given:

distance between the opposite ends = 22 miles

speed of Lin= 2.5 miles/hr

speed of Andre= 3 miles/hr

they both walk towards each other at the same time

Now the relative speed of approach = 3+2.5= 5.5 miles/hr

time of meet = distance/ speed of approach

= 22/5.5= 4 hours

so, they would meet after 4 hour since the start of their journey

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Step-by-step explanation:

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2 years ago
Adult men have heights that a normally distributed with a mean of 69.5 inches and a standard deviation of 2.4 inches. Adult wome
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Answer:

Step-by-step explanation:

From the information given:

For Adult Men

Mean \mu = 69.5

Standard deviation \sigma = 2.4

observed value X = 74

For Adult Women

Mean \mu = 63.8

Standard deviation \sigma = 2.6

observed value X = 70

Therefore ; the values for their z  scores can be obtained in order to determine who is more unusually tall within his or her respective sex

For Adult Men :

z = \dfrac{X- \mu}{\sigma}

z = \dfrac{74- 69.5}{2.4}

z = \dfrac{4.5}{2.4}

z = 1.875

For Adult Women :

z = \dfrac{X- \mu}{\sigma}

z = \dfrac{70- 63.8}{2.6}

z = \dfrac{6.2}{2.6}

z = 2.3846

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5 0
3 years ago
Which of the following values would be an outlier in the following set? 1, 14, 17, 18, 19, 23
tatuchka [14]
1 would be the outlier
5 0
3 years ago
Read 2 more answers
35 is what percentage of 60
Aliun [14]
To find this out, divide 35 by 60:

35/60 = .583333333333

So 35 is 58.3% of 60.

Hope this helps!
7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%205%7Bx%7D%5E%7B2%7D%20%20%2B%202x%20%3D%207x%20%2B%203x%20%5C%5C%20find%20%5C%3A%20the%20%5C
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Answer:

5 {x}^{2}  + 2x = 7x + 3x \\ 5 {x}^{2}  + 2x = 10x \\ 5 {x}^{2}  = 10x - 2x \\ 5 {x}^{2}  = 8x \\ 5x = 8 \\ x =  \frac{8}{5}  = 1.6 \\ thank \: you

4 0
2 years ago
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