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1 year ago

a bicycle wheel has a diameter of 65cm what is the length of one revolution of the wheel PLEASE HELP

Mathematics

2 answers:

Lana71 [14]1 year ago

7 0

AnswerAnswerAnswerAnswer: C = πd = 65π = 204.2 cm

Step-by-step explanation: C = pi*d

where d is the diameter.

First we get the circumference, then we multiply it by the number of revolutions, which is 20:

C = 3.14 * 65

C = 204.1 cm (this is only equal to 1 revolution)

Therefore, total distance travelled in after 20 revolutions is

204.1 * 20 = 4082 cm

Nonamiya [84]1 year ago

4 0

204.2 is the answer to the question

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dimaraw [331]

Answer:

3/8

Step-by-step explanation:

they simply combined the like terms (aka the x numbers in this case) so all that's left is 3/8

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2 years ago

Nola hiked down a trail at a steady rate for 10 minutes. Her change in elevation was −170 feet. Then she continued to hike down

madreJ [45]

Answer: First portion is greater than second portion.

Step-by-step explanation:

Time taken to hiked down a trail = 10 minutes

Change in elevation = (-) 170 feet

Speed is given by

$Speed=\frac{Distance}{Time}\\\\Speed=\frac{170}{10}\\\\Speed=17\text{ feet per minute}$

Similarly,

Time taken to hiked down a trail = 20 minutes

Change in elevation = (-)220 feet

Speed is given by

$Speed=\frac{Distance}{Time}$

$Speed=\frac{220}{20}\\\\Speed=11\text{ feet per minutes}$

So, we can see that first portion of the hike where he hiked down a trail at a steady rate for 10 minutes and her change in elevation was (-) 170 feet, was her rate of change in elevation greater.

<u>As 17 feet per minutes is greater than 11 feet per minutes.</u>

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2 years ago

The price of a holiday was decreased by 12% to £600. What was the price before the decrease? Give your answer to the nearest pen

s2008m [1.1K]

Answer: £5000

Step-by-step explanation:

If 12% decrease = £600

Then (100- 12)% = x

100% = x

0.12x = 600 x 0.88

0.12x = 528

Divide both sides by 0.12

£4400

Therefore, original price before 12% decrease was £5000

7 0

3 years ago

0.00237 in scientific notation

vladimir1956 [14]

The answer is 2.37 × 10^-3

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3 years ago

#1 Find each angle measure in the triangle. 3x⁰ 2x° 4x° The measure of the angle labeled 2xº angle labeled 3x° is Previous K °.

julia-pushkina [17]

3x° is 60° , 2x° is 40° and 4x° is 80°

<h3>How to determine the angles</h3>

Note that the sum of angles in a triangle is 180°

Solve for x in the triangle

Then,

3x° +2x° + 4x° = 180°

Add the x°

9x° = 180°

Divide both sides by 9

x° = 180÷ 9 = 20°

If x° = 20

Then 3x° = 3× 20 = 60°

2x° = 2 × 20 = 40°

4x°= 4× 20 = 80°

Therefore, 3x° is 60° , 2x° is 40° and 4x° is 80°

Learn more about angles in a triangle:

brainly.com/question/7620723

#SPJ1

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1 year ago

a bicycle wheel has a diameter of 65cm what is the length of one revolution of the wheel PLEASE HELP​

a bicycle wheel has a diameter of 65cm what is the length of one revolution of the wheel PLEASE HELP