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Q: What is the circumference of a circle with a 20.5 inch diameter?

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The three numbers are 205, 207 and 209.

60+40+55+x=360 x=205

To find multiples of a number we multiply that number with natural numbers, 1, 2, 3, 4, ... . Since those natural numbers are also called the consecutive positive integers, let's denote with x the first of the four consecutive positive integers whose product with 5 add up to 4,130. So we are adding these multiples of 5: 5x + 5(x + 1) + 5(x + 2) + 5 (x + 3) = 4,130 5x + 5x + 5 + 5x + 10 + 5x + 15 = 4,130 20x + 30 = 4,130 20x = 4,100 x = 205 Since we are interested for the largest multiple, then we have: x + 3 = 205 + 3 = 208 5 x 208 = 1,040. Thus, the largest number is 1,040.

Sum of all the angles in the triangle has to be 180 degrees. Let's mark the largest angle as x. Then, smallest angle will be 0.5x and the middle one x-25. x + 0.5x +x - 25 = 180, which is after simplyfying: 2.5x = 205 x = 82 degrees -> the largest angle, x-25 = 57 degrees -> middle one, 0.5x = 41 degrees -> the smallest angle.

There is actually a predictable pattern that the odd digits follow. Take a look at the first four numbers:0, 5, 10, 15The first number has no odds, the second and third both have one, and the fourth has two. This gives a total of four odds. Now, take a look at the next four numbers:20, 25, 30, 35Once again, we have no odds in the first number, one odd in the next two numbers, and two odds in the fourth. Once again, this pattern shows up, giving us four odds.So, you may be tempted to think that this pattern continues indefinitely, giving us four odd digits for every four numbers in the sequence, but this changes once we reach the hundreds. Notice that when we reach the hundreds, we have:100, 105, 110, 115The pattern is similar, but each number in the sequence gives us an extra odd number, that 1 in the hundreds place. So now, we have 8 odds for every 4 numbers. This changes again at the two hundreds:200, 205, 210, 215Since 2 is even, we don't count it, which means we are back to our original pattern of 4 odds per four numbers. It's easy to see that we are going to alternate between these two patterns all the way up to 1,000, since the hundreds place will keep alternating between even and odd digits. Now, since there are going to be exactly 20 numbers in the pattern from 0 to 95, and 20 more from 100 to 195, and so on, and 20/4 = 5, we will have 5x4 = 20 odd digits for each of the following ranges: 0-95, 200-295, 400-495, 600-695, and 800-895, and 5x8 = 40 for the five remaining ranges. So, from 0 to 995, we are going to have a total of5x20 + 5x40 = 300 oddsOnce we reach the 1,000's, the pattern continues, but with one difference: the 1 in the thousands place gives us an extra odd for each number in the sequence. It's easy to see that this is the only part of the pattern that changes. So, to figure out how many odds there are between 1,000 and 1,995, we first note that since we are counting by 5s, there are 1,000/5 = 200 numbers in this part of the sequence. So, there will be 200 additional odd digits between 1,000 and 1,995. That leaves us with300 + 200 = 500 odds.Altogether, that gives us 300 + 500 = 800 odds from 0 to 1,995.Once we reach the 2,000's, we no longer have an odd thousands digit, so we don't have to count that any more. That means in the range of the 2,000's, we are back to having 300 odd digits. Then, since 3 is odd, we'll have another 500 odd digits in the range of 3,000's (once again, we have this alternating pattern). So, that gives us another 800 odds, which means between 0 and 3,995, we have 800 + 800 = 1,600 odds.In the 4,000's, we'll have 300 odds, which brings our total up to 1,900 odd digits all together. Now that we are getting close to the 2,009th digit, we'll have to slow down, or else we'll pass it up. From 5,000 to 5,095, there will be 40 odd digits, bringing the total to 1,940. From 5,100 to 5,195, there are 60 odds, bringing our total to 2,000.We are now close enough to just count our way to the 2,009th digit. Our answer will be the 9th digit to show up in the following part of the sequence:5200, 5205, 5210, 5215, 5220, ...Our answer turns out to be 5220, with the 5 being the 2009th odd digit.Edit:Notice that even though Tommy's answer was incorrect, it shouldn't have been ruled out simply because it isn't an odd number. The question clearly states that we are looking for the 2009th odd digit. It says nothing about whether or not this will appear in an odd number. As it turns out, the answer was and even number, but the odd digit we were looking for turned up in the thousands place

Related questions

Circumference = 2pi*r 410 = 2pi*r r = 205/pi A = pi*r^2 A = pi*(205/pi)^2 A = 205^2/pi metres A = 42 025/pi metres

205 inch is equals to 520.7 centimeters

Check the sidewall markings. For example, it might say: "205/55 R16 91H" For circumference, you need the first three numbers. (The last number is the weight rating, the last letter is the speed rating. The "R" means radial, which all modern tires are.)205 is the width in mm55 is the ratio of the sidewall height in percentage of the width. (IOW: 55% of 205 mm)16 is the wheel diameter in inchesFirst convert the tire width to inches:205 / 25.4 = 8.07 inThen get the sidewall height:8.07 * 55% = 4.44 inThe diameter of the tire is the wheel diameter plus two sidewall heights:16 + 4.44 + 4.44 = 24.88 inFinally, circumference is 2 * Pi * radius, or pi * diameter:3.14 * 24.88 = 78.1 inIn one formula, the above would be:( (205/25.4 * 55/100 * 2) + 16) * PI()Also, there are many online calculators that will calculate all this for you.

no circumference same

Eratosthenes is credited with calclating the circumference of the Earth at the equivalent of 25,000 miles/40,000km in about 205 BCE.

what is the diameter difference from a 205/65/16 vs. 225/60/16

205/12 = 17 feet and 1 inch left over

You can but your speedometer will be off. The 205/50-16 has a diameter of 24.1 " and the 205/55-16 has a diameter of 24.9". That is a difference of .8". I suggest you stick with the OEM size. Click the link to see what effect different sizes will have.

205 70h15 is the most common replacement. 6.40xa5 is 26.52" in diameter, while 205 70h15 is 26.30". If you could find a 205 75h15, this is perfect.

ANSWER Volume -> 3.14 * 40 * 40 * 240 = 1 205 760 cubic inch 1 205 760 cubic inch = 19.76 cubic meter

The chart on the related link indicates that the diameter of these tire sizes is different. See it for more information.

No.1 inch = 2.54 cm8 inches = 8 inches * 2.54 cm/1 inch = 20.32 cm205 cm = 205 cm * 1 inch/2.54 cm =80.71 inches

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