Will give brainliest -- (there is more than one answer) When constructing a confidence interval for a difference between two pop
1 answer:
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Answer: 5 minutes or 1/12 hour
Explanation:
Let t = time it takes for Alex to catch up with Victor.
s = time it took for Victor to ride 1/2 km
Note that Alex will only start catching up with Victor when he already traveled the same distance with Victor. In terms of equation:
distance traveled by Alex = distance traveled by Victor
(speed of Alex)(time of Alex) = (speed of victor)(time of victor) (1)
Note: The amounts of time indicated in equation (1) refer to the amounts of time they spent on riding a bike when Alex catches up with Victor.
Since the speeds of Alex and Victor are given in the problem, we need to figure out the amount of time stated in equation (1).
Since Alex started to ride his bike only when Victor already traveled 1/2 km using his bike and Victor has already elapsed time s in riding 1/2 km, Alex only started to bike at time s. So Victor has elapsed a time of (t + s) riding a bike when he is caught up by Alex.
Using equation (1),
(speed of Alex)(time of Alex) = (speed of victor)(time of victor)
24t = 18(t + s) (2)
To solve for s, recall that we'll use the following formula
distance = (speed)(time)
Substituting this value of s to equation (1), we have
24t = 18(t + 1/36)
24t = 18t + 18(1/36)
24t = 18t + 1/2
6t = 1/2
(6t ÷ 6) = (1/2) ÷ 6
t = 1/12 hour (Since the unit for speed in the problem is km/hr)
We can convert 1/12 hour to minutes by multiplying 1/12 by 60 since 1 hour = 60 minutes. So, t = 5 minutes. Hence, it will take 5 minutes for Alex to catch up with Victor.
Explanation:
Let t = time it takes for Alex to catch up with Victor.
s = time it took for Victor to ride 1/2 km
Note that Alex will only start catching up with Victor when he already traveled the same distance with Victor. In terms of equation:
distance traveled by Alex = distance traveled by Victor
(speed of Alex)(time of Alex) = (speed of victor)(time of victor) (1)
Note: The amounts of time indicated in equation (1) refer to the amounts of time they spent on riding a bike when Alex catches up with Victor.
Since the speeds of Alex and Victor are given in the problem, we need to figure out the amount of time stated in equation (1).
Since Alex started to ride his bike only when Victor already traveled 1/2 km using his bike and Victor has already elapsed time s in riding 1/2 km, Alex only started to bike at time s. So Victor has elapsed a time of (t + s) riding a bike when he is caught up by Alex.
Using equation (1),
(speed of Alex)(time of Alex) = (speed of victor)(time of victor)
24t = 18(t + s) (2)
To solve for s, recall that we'll use the following formula
distance = (speed)(time)
Substituting this value of s to equation (1), we have
24t = 18(t + 1/36)
24t = 18t + 18(1/36)
24t = 18t + 1/2
6t = 1/2
(6t ÷ 6) = (1/2) ÷ 6
t = 1/12 hour (Since the unit for speed in the problem is km/hr)
We can convert 1/12 hour to minutes by multiplying 1/12 by 60 since 1 hour = 60 minutes. So, t = 5 minutes. Hence, it will take 5 minutes for Alex to catch up with Victor.
Answer:
a) add x , subtract 1 and divide by 4
The solution of given equation
<u>Step-by-step explanation:</u>
Given equation 1+3 x = -x +4
<em> Add 'x' on both sides , we get</em>
1 + 3 x + x = - x + x +4
1 + 4 x = 4
<em> Subtract '1' on both sides , we get</em>
<em> 1+4 x -1 = 4 -1</em>
4 x = 3
<em> Dividing '4' on both sides, we get</em>
<u><em>Final answer</em></u>:-
<em>The solution of given equation </em><em></em>