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Over [174]
4 years ago
5

Shelly and her family are riding the Pikes Peak Cog Railway. The table shows the approximate distances the train has covered at

the end of different time periods.
PLEASE ANSWER

Based on the information in the table, which equation can be used to find the distance (d), the train will travel in any number of minutes (m)?

A. d=0.12m
B. d=0.18m
C. d=0.36m
D. d= 0.83m

Mathematics
1 answer:
irga5000 [103]4 years ago
4 0

Relationship between distance and time is A. d = 0.12m

Step-by-step explanation:

For an object moving in uniform motion (=constant velocity), the relationship between distance covered and time taken is given by

d=vt

where

d is the distance

v is the velocity

t is the time

Therefore, in order to find the relationship between distance and time, we have to find the velocity of the train.

This can be done by using the data of the table: in fact, the velocity is the ratio between the distance covered and the time taken to cover that distance.

Therefore, if we take for instance the last point of the table:

d = 2.4 miles (distance covered)

t = 20 minutes (time taken)

So the velocity is

v=\frac{d}{t}=\frac{2.4}{20}=0.12 mi/min

And therefore, the relationship between distance and time is

d=0.12 m

(where m is the time in minutes)

Learn more about distance, time and velocity:

brainly.com/question/8893949

#LearnwithBrainly

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dalvyx [7]

Answer:

1767.1 inches cubed

Step-by-step explanation:

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Here, the radius is r = 7.5. So, plug in this value: V=\frac{4}{3} \pi *(7.5)^3=562.5\pi

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Hope this helps!

6 0
3 years ago
Read 2 more answers
Tyler and Pearl went on a 20km bike ride that lasted for 3 hours. Because of steep hills or the trail, they walked for most of t
noname [10]

Answer: 1 hour


Step-by-step explanation:

Let the distance they walked be d_1 in time t_1 and the distance they walked be d_2 in time t_2 ,then

Walking speed=\frac{d_1}{t_1}=4

\\\Rightarrow\ d_1=4t_1

Riding speed=\frac{d_2}{t_2}=12

\\\Rightarrow\ d_2=12t_1

Also the total time taken=3 hours

∴t_1+t_2=3\\\Rightarrow\ t_2=3-t_1...(1)

Since the total distance= 20 km

∴d_1+d_2=20\\\Rightarrow4t_1+12t_2=20\\\Rightarrow4t_1+12(3-t_1)=20..............[\text{from (1)}]\\\Rightarrow4t_1+36-12t_1=20\\\Rightarrow-8t_1=-8\\\Rightarrow\ t_1=1

Thus, the they spent 1 hour time in walking.

7 0
3 years ago
Help me!!!!!!!!!!!!!!!!!!!!!!
DedPeter [7]

Hello from MrBillDoesMath!


Answer:

Choice D.


Discussion:

Substitute x = 9 in the choices

A.   when x = 9, x^2 - 6x + 9  =  36

B.   when x = 9, x^2 + 16x + 63  = 288

C.   when x = 9, x^2 + 14x + 45 = 252

D.   when x = 9,  x^2 -12x + 27 = 0

Thank you,

MrB

3 0
3 years ago
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ikadub [295]
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8 0
3 years ago
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kumpel [21]

Answer:

Part A: The tent is shaped like a square pyramid

Part B: a 36ft tent

Step-by-step explanation:

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3 years ago
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