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Sedaia [141]
3 years ago
13

if your bicycle tire has a diameter of 9 inches. how many rotations does each tire make if you travel 300 feet?

Mathematics
1 answer:
Vesnalui [34]3 years ago
8 0
Step One
Calculate the number of feet traveled in 1 rotation.

Formula
C = π*d
P = 3.14
d = 9 inches = 9/12 feet = 3/4 of a foot.

C = 3.14 * 3/4 = 2.355 So that means that every time the tire turns around 1 complete turn, the distance traveled on the ground is 2.355 feet.
 
Step Two
Figure out the number of revolutions.
1 revolution = 2.355 feet
x revolutions = 300 feet.

1/x = 2.355/ 300  Cross multiply
2.355 feet * x = 1 rev * 300 feet
2.355 x = 300 rev Divide by 2.355
x = 300 / 2.355 
x = 127.39 revolutions. <<<< Answer

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Answer:

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so same as saying

2d + 2c = 244

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Step-by-step explanation:

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B) 100.42 years.

Step-by-step explanation:

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7.1 \times 2=7.1(1.011)^{t}  

\frac{7.1 \times 2}{7.1} =(1.011)^{t}

2 =(1.011)^{t}

Now let us solve for t using logarithm.

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ln(2) =t \cdot ln(1.011)

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B) Now we will find the number of years it will take the population to be triple of its size.

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3 =(1.011)^{t}

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ln(3) =ln (1.011)^{t}

ln(3) =t \cdot ln(1.011)

1.0986122886681097 =t \cdot 0.0109399400383344  

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