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Ierofanga [76]
2 years ago
10

You are walking 3.5 miles per hour. At this pace, how long will it take to walk the 6 miles to school?

Mathematics
1 answer:
Shkiper50 [21]2 years ago
8 0

Answer:

Step-by-step explanation:

speed = s = 3.5 miles / hour

d = 6 miles

t = ?

============

t = d / s

t = 6 / 3.5

t = 1.714 hours

t = 1 5/7 hours

You could figure this out in minutes for 5/7 but it will not make the time any clearer. You will still wind up with a fraction.

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telo118 [61]

It takes 40 minutes more going up or 40/60 = 0.67 hours more.

Let us say that:

t = the time required for him running down

t + 0.67 = time required for him running up

 

Since the distance of running up and down must be equal therefore:

(3 miles / hr) * (t + 0.67) = (5 miles / h) * t

3 t + 2.01 = 5 t

2 t = 2.01

t = 1.005 hr

 

So the total length of the hike is:

length = 2 * (5 miles / hr) * (1.005 hr)

<span>length = 10.05 miles</span>

3 0
3 years ago
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I need help in my math homework
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All you do is subtract the two numbers
4 0
3 years ago
Help ?!!!!!!!!!!!!!!!!!!
Doss [256]

Answer:

Step-by-step explanation:

n=1

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7 0
3 years ago
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In a state lottery game you select six numbers from 1 to 44. the state selects six numbers at random from 1 to 44 without replac
LiRa [457]
We need to correctly choose exactly 4 out of the 6 drawn numbers.

Apply hypergeometric distribution:
a=number of correctly chosen numbers = 4
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b=number of incorrectly chosen numbers = 2 
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Then by the hypergeometric distribution
P(a,b,A,B)
=C(A,a)C(B,b)/C(A+B,a+b)  [C(n,r)=combination of r objects taken out of n]
=C(6,4)C(38,2)/C(44,6)
=15*703/7059052
= 10545/7059052
= 0.001494 (to the nearest millionth)
Answer: probability of winning third prize is 10545/7059052=0.001494

6 0
3 years ago
You want to have $35,000 in cash to buy a car 4 years from today. you expect to earn 8 percent, compounded annually, on your sav
Anna007 [38]
You will need to use this formula:
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