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kotykmax [81]
3 years ago
7

What is the speed of a train that travels 52 kilometers in 3 hours?

Mathematics
2 answers:
Over [174]3 years ago
5 0

Answer:

17 km/hr

Step-by-step explanation:

Speed=

\frac{distance}{time}

so, since the units are the same, kilometer per hour and hour, we simply divide

that's

\frac{52}{3}

and that's 17.333 approximately 17km/hr

qaws [65]3 years ago
4 0

Answer:

17 km/h

Step-by-step explanation:

52:3=17.3≈17   km/hour

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You take a 200 milligram dosage of aspirin. During each subsequent hour, the amount of medication in your bloodstream decreases
shepuryov [24]

Answer: The level of aspirin (mg) will be in your bloodstream in 4 hours = 35.70 mg.

Step-by-step explanation:

If the amount is decreasing by r%, then the final amount is given by :-

A=P(1-r)^t

, where P = initial value , t= time

Given: P= 200 milligram, r= 35% = 0.35, t= 4 hours

The level of aspirin (mg) will be in your bloodstream in 4 hours = 200(1-0.35)^4

=200(0.65)^4\\\\=200\times 0.17850625\\\\=35.70125\approx35.70 \ mg

Hence, the level of aspirin (mg) will be in your bloodstream in 4 hours = 35.70 mg.

5 0
3 years ago
Which values are outliers?
SSSSS [86.1K]
Answer:
0.8 Not Outlier
1.1 Not Outlier
10.2 Not Outlier
10.9 Not Outlier 

Solution:
Arranging the numbers in ascending order:
     0.8   1.1   4.9   5.2   5.8   5.9   6.1   6.1   7.4   10.2   10.9
we can see that the median is 5.9.

We can find the first quartile Q1 by getting the median in the lower half of the data 
     0.8   1.1   4.9   5.2   5.8
that is, Q1 = 4.9

We can find the third quartile Q3 by getting the median for the upper half of the data 
     6.1   6.1   7.4   10.2   10.9
that is, Q3 = 7.4

We subtract Q1 from Q3 to find the interquartile range IQR.
     IQR = Q3 - Q1 = 7.4 - 4.9 = 2.5

We can now calculate for the upper and lower limits:
     upper limit = Q3 + 1.5*IQR = 7.4 + (1.5*2.5) = 11.15
     lower limit = Q1 – 1.5*IQR = 0.8 - (1.5*2.5) = -2.95
There is no data point that lies above the upper limit and below the lower limit, therefore, there are no outliers in the data set.
8 0
3 years ago
Read 2 more answers
What is the distance between A and B? Round your answer to the nearest tenth. A coordinate plane is shown. Point A is located at
o-na [289]
\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
A&({{ 1}}\quad ,&{{ 5}})\quad 
%  (c,d)
B&({{ 4}}\quad ,&{{ 1}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
AB=\sqrt{(4-1)^2+(1-5)^2}\implies AB=\sqrt{3^2+(-4)^2}
\\\\\\
AB=\sqrt{9+16}\implies AB=\sqrt{25}\implies AB=5
3 0
4 years ago
DIFFERENT WORDS, SAME QUESTION Which is different?
Gala2k [10]

The third choice is different.

The other three you need to roll a 1 first.

5 0
3 years ago
Read 2 more answers
Need help asap i’ll vote brain liest
seropon [69]

Answer:

The answer is y=3x+1

6 0
3 years ago
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