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What is 30-21?

Updated: 9/19/2023
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13y ago

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Linnie Rosenbaum

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3y ago
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13y ago

30 - 21 = 9

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Q: What is 30-21?
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How many hundreds are in 3021?

30 hundreds, with 21 left over, or 30.21 hundreds.


How many different numbers can be formed by rearranging the four digits in 2013?

Since each of the digits 0, 1, 2, and 3 is unique you can have 4! (4 factorial) possible combinations: 4! = 4x3x2x1 = 24 different ways to arrange the 4 digits Of course any number starting with zero would usually be truncated to 3 digits. In that case you would omit all those arrangements from the list of four-digit numbers leaving you with 3x3x2x1 = 18 possibilities 1) 1023 2) 1032 3) 1203 4) 1230 5) 1302 6) 1320 7) 2013 8) 2031 9) 2103 10) 2130 11) 2301 12) 2310 13) 3012 14) 3021 15) 3102 16) 3120 17) 3201 18) 3210


7 over 10 minus 3 over 15?

7/10 - 3/15 = 15/30 = 1/2Why?You need to find the LCD (least common denominator) which is 30. Look at the work below. You must keep in mind that whatever you do to the denominator, you must do to the numerator.7/ time 3 = 21/10 time 3 = 30- 3/ time 2 = 6/15 time 2 = -3021 - 6 = 15= 15/30 = 1/27/10 - 3/15 = ?Since 3/15 can be easily reduced to 1/5, we have:7/10 - 1/5 = ?Then, we find the LCD of 5 and 10, which is 10, by multiplying 2 to the numerator and denominator of 1/5:7/10 - 2/10 = 5/10 = 1/2.Another method includes using the basic fraction and finding the LCD:7/10 - 3/15 = ?The LCD (LCM) is 10/5 * 15/5 * 5 = 2 * 3 * 5 = 30. Thus, multiply 3 to the numerator and denominator in 7/10, and 2 to 3/15 in the same fashion.21/30 - 6/30 = 15/30 = 1/2.


How do you use prime factorization to find out how many factors it has?

If you know the prime factorization of a number, you can determine the number of factors it has by looking at the possible combinations of the factors.If the prime factorization of a number is p1a * p2b *p3c , then its factors (including one and the number itself) will p1i * p2j *p3k , with i a whole number between 0 and a, j a whole number between 0 and b, and k a whole number between 0 and c.There are (a+1) numbers that i can be, (b+1) numbers that j can be, and (c+1) numbers that k can be, so there are (a+1)*(b+1)*(c+1) factors (including one and the number itself).It makes more sense using a concrete example:Consider the number 360. We want to figure out how many factors it has.It's prime factorization is 23*32*5. For a number to be a factor of 360, it will have to have only these prime factors, and the largest exponent the exponent can be for each of the factors is that factors exponent in the prime factorization of 360. So a factor of 360 will be a product of 2 (to the 0,1,2, or 3) power, 3 (to the 0,1, or 2), and 5 (to the 0 or 1 power). There are thus 4*3*2 = 24 factors of 360 (including 1 and 360). We can check this by systematically listing out the factors of 360:20*30*50=120*30*51=520*31*50=320*31*51=1520*32*50=920*32*51=4521*30*50=221*30*51=1021*31*50=621*31*51=3021*32*50=1821*32*51=9022*30*50=422*30*51=2022*31*50=1222*31*51=6022*32*50=3622*32*51=18023*30*50=823*30*51=4023*31*50=2423*31*51=12023*32*50=7223*32*51=360


What is the 57 times tables?

57 × 1 = 57 57 × 2 = 114 57 × 3 = 171 57 × 4 = 228 57 × 5 = 285 57 × 6 = 342 57 × 7 = 399 57 × 8 = 456 57 × 9 = 513 57 × 10 = 570 57 × 11 = 627 57 × 12 = 684 57 × 13 = 741 57 × 14 = 798 57 × 15 = 855 57 × 16 = 912 57 × 17 = 969 57 × 18 = 1026 57 × 19 = 1083 57 × 20 = 1140 57 × 21 = 1197 57 × 22 = 1254 57 × 23 = 1311 57 × 24 = 1368 57 × 25 = 1425 57 × 26 = 1482 57 × 27 = 1539 57 × 28 = 1596 57 × 29 = 1653 57 × 30 = 1710 57 × 31 = 1767 57 × 32 = 1824 57 × 33 = 1881 57 × 34 = 1938 57 × 35 = 1995 57 × 36 = 2052 57 × 37 = 2109 57 × 38 = 2166 57 × 39 = 2223 57 × 40 = 2280 57 × 41 = 2337 57 × 42 = 2394 57 × 43 = 2451 57 × 44 = 2508 57 × 45 = 2565 57 × 46 = 2622 57 × 47 = 2679 57 × 48 = 2736 57 × 49 = 2793 57 × 50 = 2850 57 × 51 = 2907 57 × 52 = 2964 57 × 53 = 3021 57 × 54 = 3078 57 × 55 = 3135 57 × 56 = 3192 57 × 57 = 3249 57 × 58 = 3306 57 × 59 = 3363 57 × 60 = 3420 57 × 61 = 3477 57 × 62 = 3534 57 × 63 = 3591 57 × 64 = 3648 57 × 65 = 3705 57 × 66 = 3762 57 × 67 = 3819 57 × 68 = 3876 57 × 69 = 3933 57 × 70 = 3990 57 × 71 = 4047 57 × 72 = 4104 57 × 73 = 4161 57 × 74 = 4218 57 × 75 = 4275 57 × 76 = 4332 57 × 77 = 4389 57 × 78 = 4446 57 × 79 = 4503 57 × 80 = 4560 57 × 81 = 4617 57 × 82 = 4674 57 × 83 = 4731 57 × 84 = 4788 57 × 85 = 4845 57 × 86 = 4902 57 × 87 = 4959 57 × 88 = 5016 57 × 89 = 5073 57 × 90 = 5130 57 × 91 = 5187 57 × 92 = 5244 57 × 93 = 5301 57 × 94 = 5358 57 × 95 = 5415 57 × 96 = 5472 57 × 97 = 5529 57 × 98 = 5586 57 × 99 = 5643 57 × 100 = 5700

Related questions

What is the chemical name for duramax-3021?

Polyacrylic acid (Duramax D-3021)


What is 3021 in simplest form?

3021 is an integer and not a fraction. However, it can be expressed in rational form as 3021/1 which cannot be simplified.


What is the factor of 3021?

1, 3, 19, 53, 57, 159, 1007, 3021


What is the SIC Code for?

3021


What does SIC 3021 refer to?

Establishments primarily engaged in the manufacture of rubber or plastics footwear are classified in SIC 3021


What is the number of thousands in 3021?

3


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3021


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3021


When was north carolinas nickname adopted?

3021


How many Incas were in the imperial army?

3021


What are the release dates for The Bold and the Beautiful - 1987 1-3021?

The Bold and the Beautiful - 1987 1-3021 was released on: USA: 9 April 1999


Is the Gucci 3021 eye glasses unisex?

Yes