A cyclist rides 225 m each minute.About how long does it take to ride 15km? Show all fo your work

Answers

Answer 1
Answer: Speed = 225 metres per minute

Distance = 15 km = 15,000 metres

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s=d/t

ts=d

Therefore: t=d/s

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Time = Distance / Speed

Time = (15,000 metres) / (225 metres per minute)

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Let's work it out:

Time=\frac { 15,000\quad metres }{ \frac { 225\quad metres }{ 1\quad minute\left( s \right)  }  } \n \n =\frac { 15,000\quad metres }{ 1 } \cdot \frac { 1\quad minute\left( s \right)  }{ 225\quad metres } \n \n =\frac { 15,000 }{ 225 } minutes

\n \n =\frac { 200 }{ 3 } minutes\n \n \frac { 200 }{ 3 } minutes\quad =\quad 66\quad minutes,\quad 40\quad seconds

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What number of students describes the third quartile?
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Answers

Answer:

Step-by-step explanation:

Arrange the numbers in order from least to greatest;

18, 18, 18, 20, 21, 22, 23, 23, 24, 24

Find the Median = (21+22)/2= 21.5

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A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. If 15 wood and 20 graphite are defective and one racket is randomly selected from the sample, find the probability that the racket is wood or defective.

Answers

Probability Wood is 100/200 and the Probability defective would be 35/200

Probability for both would just be 15/200

(100+35-15)/200=(120/200)

Let me know If I'm right.

60 is what fraction of 90

Answers

You would just put 60 over 90.
60/90 and simplify!
6/9
2/3 is the final answer! 

a prism and a pyramid are side by side. they have the same height and same base are. the volume of the prism would be ? times the volume of the pyramid?

Answers

Answer:

The volume of the prism is 3 times the volume of the cone

Step-by-step explanation:

step 1

we know that

The area of the prism is given by the formula

V_p=Bh ----> equation A

where

B is the area of the circular base

h is the height of the prism

step 2

The area of the cone is given by the formula

V_c=(1)/(3) Bh ----> equation B

where

B is the area of the circular base

h is the height of the cone

In this problem we have that they have the same height and same base area

so

substitute equation A in equation B

V_c=(1)/(3) V_p

solve for V_p

V_p=3V_c

therefore

The volume of the prism is 3 times the volume of the cone

Solve or answer the item

Answers

the answer is 148. the proportion is already set up, so all you have to do is to cross multiply and divide.

259         7              7x       1036
------ =  -----  =     ------- =  --------- =  148
  k           4              7            7

(Hope this helps)

What is the volume of a sphere with a diameter of 14 centimeters? Use 3.14 for pi. Round your answer to the nearest hundredth.A 1077.02 cm3
B 1436.03 cm3
C 1975.43 cm3
D 11,494.04 cm3

Answers

Answer:

b

Step-by-step explanation:

Answer:

B. 1436.03 cm^3

Step-by-step explanation:

What you do is use the formula of the volume of a sphere which is

v=4/3*3.14*r^3.

The r represents radius and the radius is 7 which is half the diameter.

So you will plug 7 into the formula.

V=4/3*3.14*7^3.

V=1436.03 cm^3 which is your answer.