when adding mixed numbers,is it always necessary to write the sum as a mixed number Explain?

when adding mixed numbers,is it always necessary to write the sum as a mixed number Explain?
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what is 2+@
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When adding two mixed numbers is it always necessary to rename the fractional sum explain?

Description : When adding two mixed numbers is it always necessary to rename the fractional sum explain?

Last Answer : Only if the fraction is improper (greater than one).

When the celebrated German mathematician Karl Friedrich Gauss (1777-1855) was nine he was asked to add all the integers from 1 through 100. He quickly added 1 to 100, 2 to 99, and so on for 50 pairs of numbers each adding to 101. 50 X 101=5,050.Now find the sum of all the digits in integers from 1 through 1,000,000,000.That's all the digits in all the numbers, not all the numbers themselves. -Riddles

Description : When the celebrated German mathematician Karl Friedrich Gauss (1777-1855) was nine he was asked to add all the integers from 1 through 100. He quickly added 1 to 100, 2 to 99, and so on for 50 pairs ... 1,000,000,000.That's all the digits in all the numbers, not all the numbers themselves. -Riddles

Last Answer : The numbers can be grouped by pairs: 999,999,999 and 0; 999,999,998 and 1' 999,999,997 and 2; and so on.... There are half a billion pairs, and the sum of the digits in each pair is 81. The digits in the unpaired number, 1,000,000,000, add to 1. Then: (500,000,000 X 81) + 1= 40,500,000,001.

Can the sum of two mixed numbers be equal to two?

Description : Can the sum of two mixed numbers be equal to two?

Last Answer : Yes

What property says that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the product?

Description : What property says that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the product?

Last Answer : Distributive property

What property says that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the product?

Description : What property says that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the product?

Last Answer : Distributive property

The mean score on any class test is the result of Options: A) dividing the sum of all scores by the number of scores B) determining the middle score when all the scores have been listed from the highest to the lowest C) determining the most frequent score. D) Adding all the scores and dividing by the most frequent score

Description : The mean score on any class test is the result of Options: A) dividing the sum of all scores by the number of scores B) determining the middle score when all the scores have been listed from ... C) determining the most frequent score. D) Adding all the scores and dividing by the most frequent score 

Last Answer : A) dividing the sum of all scores by the number of scores 

The sum or difference of of two irrational numbers is always (a) rational (b) irrational (c) rational or irrational (d) not determined

Description : The sum or difference of of two irrational numbers is always (a) rational (b) irrational (c) rational or irrational (d) not determined

Last Answer : (b) irrational

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Last Answer : b. is not necessary for composite resin bonding

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Last Answer : #include<stdio.h> #include<conio.h> void main() { int sum=0,i; clrscr(); for(i=1;i<=20;i++)  { if(i%2==1) sum=sum+i; }  printf(“sum of odd no“s between 1 to 20 is %d”,sum); getcht); }

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Last Answer : Just about anybody in Afghanistan, or Wahabis in Saudi Arabia. They think that is Satanic influence. Plus just about any student in American urban schools

Is it possible to get 50 by adding any 5 odd numbers between 1-50 ?

Description : Is it possible to get 50 by adding any 5 odd numbers between 1-50 ?

Last Answer : The sum of an odd number of odd numbers will always be odd , since it is not possible to say 50 or even. However, if the answer is as follows: Roman 3 + 13 + 7 + 15 + 1 = 50 , that is , 1 + 3 + 7 + 13 + 15 = 3 + 13 + 7 + 15 ... = 2 (1 + 11 + 5) + 15 + 1 = 2 (17) +16 = 34 + 16 = 50

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Last Answer : 5 1/4 = 21/43 1/2 = 7/221/4 * 7/2 = 147/8Now simplify the answer:147/8 = 18 and 3/8Final answer:18 and 3/8 square feet

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Last Answer : answer:

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Last Answer : Acid to water

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Description : The necessary condition of equilibrium of a body is a.The algebraic sum of horizontal components of all forces must be zero b.The algebraic sum of vertical components of all forces must be zero c.The algebraic sum of forces about a point must be zero d.All the above e.None of the above

Last Answer : d. All the above

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Last Answer : (A) Chemical potentials of a given component should be equal in all phases

Find four numbers, the sum of which is 45, so that if 2 is added to the first number, 2 is subtracted from the second number, the third number is multiplied by 2 and the fourth number is divided by 2, then the four numbers so produced are all the same. What are the four numbers? -Riddles

Description : Find four numbers, the sum of which is 45, so that if 2 is added to the first number, 2 is subtracted from the second number, the third number is multiplied by 2 and the fourth number is divided by 2, then the four numbers so produced are all the same. What are the four numbers? -Riddles

Last Answer : 8 + 2 = 10 12 - 2 = 10 5 x 2 = 10 20 ÷ 2 = 10 45

A number say z is exactly the four times the sum of its digits and twice the product of the digits. Find the numbers -Maths 10th

Description : A number say z is exactly the four times the sum of its digits and twice the product of the digits. Find the numbers -Maths 10th

Last Answer : This is the Answer

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Last Answer : Pick a pair of numbers.Let's try 30 and 42.Their GCF is 6.6 x 5 and 6 x 7By the distributive property, that can be written as 6(5 +7)

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Description : What are two cubic numbers whose sum is a square number?

Last Answer : Need answer

Is The sum of two complex numbers is sometimes a real number.?

Description : Is The sum of two complex numbers is sometimes a real number.?

Last Answer : Sure, if the imaginary part is opposite. For example:(3 + 2i) +(5 - 2i) = 8

What is The sum of two numbers is twenty one half the first number plus one fourth the second number is 9 find the two numbers?

Description : What is The sum of two numbers is twenty one half the first number plus one fourth the second number is 9 find the two numbers?

Last Answer : Feel Free to Answer

What number is a multiple of 6 and 12 and has the sum of 9 numbers?

Description : What number is a multiple of 6 and 12 and has the sum of 9 numbers?

Last Answer : All multiples of 12 are also multiples of 6 and they all can bewritten as the sum of nine numbers.

if the sum of two numbers is 5, and 1/6 of one of the numbers is equal to 25% of the other number, what are the numbers?

Description : if the sum of two numbers is 5, and 1/6 of one of the numbers is equal to 25% of the other number, what are the numbers?

Last Answer : Since the sum of the two numbers equals 5, we can write one number as n and the other as 5-n. Now, let's write our equation. First, let's convert 25% into a fraction--that would be 1/4. So our ... 6x to both sides to get: 10x=30 Finally, our last step is to divide both sides by 10. Now we kn

This is the sum the numbers in a set, divided by the number of items in the set.?

Description : This is the sum the numbers in a set, divided by the number of items in the set.?

Last Answer : The mean value.

The sum of two numbers is 14. The larger number minus three times the lesser number is -2. What is the lesser number?

Description : The sum of two numbers is 14. The larger number minus three times the lesser number is -2. What is the lesser number?

Last Answer : 16

The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons

Description : The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons

Last Answer : d. Molecular Weight; Daltons

The LCM of two numbers is 45 times their HCF. If one of the numbers is 125 and the sum of HCF and LCM is 1150, then the other number is? a) 100 b) 125 c) 250 d) 225 e) 180

Description : The LCM of two numbers is 45 times their HCF. If one of the numbers is 125 and the sum of HCF and LCM is 1150, then the other number is? a) 100 b) 125 c) 250 d) 225 e) 180

Last Answer : LCM = 45× HCF LCM + HCF = 46× HCF = 1150 HCF = 25, LCM =1125. product of 2 numbers = LCM×HCF required number = (25× 1125) / 125 = 225. Answer: d)

A two digit number exceeds forty percent of another two digit number by 16. If the sum of these two digit numbers is 72, which of the following is the difference between these two digit numbers ? a) 10 b) 6 c) 8 d) 14 e) None of these

Description : A two digit number exceeds forty percent of another two digit number by 16. If the sum of these two digit numbers is 72, which of the following is the difference between these two digit numbers ? a) 10 b) 6 c) 8 d) 14 e) None of these

Last Answer : c) 8 Let first two digit no. and second two digit no. be x and y respectively. x = y × 40/100 +16 x - 2y/5 = 16....(i) x + y = 72...(ii) From equation (i) and (ii) x = 32, y = 40 Difference = 8 Answer: c)

The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is: A.30 B.22 C.40 D.60 E.None of these

Description : The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is: A.30 B.22 C.40 D.60 E.None of these

Last Answer : Answer – C (40) Explanation – Let the numbers be 2x and 3x. Then, their L.C.M. = 6x. So, 6x = 48 or x = 8. The numbers are 16 and 24. Hence, required sum = (16 + 24) = 40.

There are two sets of five numbers each – set P and set Q. P is a set of consecutive even numbers and Q is a set of consecutive numbers. The sum of the numbers of P is 230. The second least number in Q is 33 less than twice the least number in P. Find the sum of the numbers in Q. 1 : 260 2 : 250 3 : 240 4 : 270 5 : None of these

Description : There are two sets of five numbers each - set P and set Q. P is a set of consecutive even numbers and Q is a set of consecutive numbers. The sum of the numbers of P is 230. The second least number in Q is 33 less ... the sum of the numbers in Q. 1 : 260 2 : 250 3 : 240 4 : 270 5 : None of these

Last Answer : 1 : 260

The L.C.M of two numbers is 14 times their H.C.F . The sum of the L.C.M. and the H.C.F . is 600. If one number is 280 , then the other number is (a) 40 (b) 60 (c) 80 (d) 100

Description : The L.C.M of two numbers is 14 times their H.C.F . The sum of the L.C.M. and the H.C.F . is 600. If one number is 280 , then the other number is (a) 40 (b) 60 (c) 80 (d) 100

Last Answer : 80

The sum of two numbers is 528 and their H.C.F is 33. What is the number of pairs of such numbers ? (a) 4 (b) 12 (c) 8 (d) 6

Description : The sum of two numbers is 528 and their H.C.F is 33. What is the number of pairs of such numbers ? (a) 4 (b) 12 (c) 8 (d) 6

Last Answer : Ans 5. 4 Hint : Let the number be 33x and 33y where x and y are co-prime.

The sum of the squares between three numbers is 5000. The ratio between the first and the second number is 3:4 and that of second and third number is 4:5. Find the difference between first and the third number. A) 20 B) 30 C) 40 D) 50 E) None of these

Description : The sum of the squares between three numbers is 5000. The ratio between the first and the second number is 3:4 and that of second and third number is 4:5. Find the difference between first and the third number. A) 20 B) 30 C) 40 D) 50 E) None of these

Last Answer : Answer: A a^2 + b^2 + c^2 = 5000 a:b:c = 3:4:5 50x^2 = 5000. X = 10. 5x – 3x = 2*10 = 20

The sum of three numbers is 210. If the ratio between the first and second number be 2:3 and that between the second and third be 4:5, then the difference between the first and third number? a) 21 b) 35 c) 42 d) 56 e) None of these

Description : The sum of three numbers is 210. If the ratio between the first and second number be 2:3 and that between the second and third be 4:5, then the difference between the first and third number? a) 21 b) 35 c) 42 d) 56 e) None of these

Last Answer : Answer: C a: b = 2:3 and b:c = 4:5 a:b:c = 8:12:15 Difference between first and third number = (7/35)*210 = 42

How much is 128.34 in mixed numbers in simplest form?

Description : How much is 128.34 in mixed numbers in simplest form?

Last Answer : It is 128 and 17/50 in its simplest form

Pick out the wrong statement. (A) The vessel dispersion number (D/UL) for plug flow and mixed flow approaches zero and infinity respectively (B) Space time in a flow reactor is a measure of its capacity and is equal to the residence time when the density of reaction mixture is constant (C) Mixed reactor is always smaller than the plug flow reactor for all positive reaction orders for a particular duty (D) In an ideal tubular flow reactor, mixing takes place in radial direction and there is no mixing in longitudinal direction

Description : Pick out the wrong statement. (A) The vessel dispersion number (D/UL) for plug flow and mixed flow approaches zero and infinity respectively (B) Space time in a flow reactor is a ... ideal tubular flow reactor, mixing takes place in radial direction and there is no mixing in longitudinal direction

Last Answer : (C) Mixed reactor is always smaller than the plug flow reactor for all positive reaction orders for a particular duty

If somebody choose two digit and three digit numbers and their difference is 989.What will be their sum? a) 1000 b)1010 c) 1006?

Description : If somebody choose two digit and three digit numbers and their difference is 989.What will be their sum? a) 1000 b)1010 c) 1006?

Last Answer : None of the above. Let x be the three digit number and y be the two digit number. x - y =989. x = 989 + y. x is obviously greater than 989 and less than 1000 (since it is three digits). Since y is a two digit number ... 989 + 10 = 999. We can't go any higher, so x =999 and y=10. x+y = 999+10 = 1009

If 4! = 1x2x3x4 and is called 4 factorial, what is the sum of the numbers e.g. 4(?)= (1+2+3+4) called?

Description : If 4! = 1x2x3x4 and is called 4 factorial, what is the sum of the numbers e.g. 4(?)= (1+2+3+4) called?

Last Answer : What’s wrong with the summation notation? It does just that. I don’t think there’s any other way of expressing it other than writing it out. [addition]: After more research, I found a formula where 1+2+3+4….+n= n*(n+1)/2 http://en.wikipedia.org/wiki/Triangular_number

A student was once given a simple task to accomplish. He was given 6 numbers: 1, 10, 20, 30, 40, and 80, and was told to sum them together to be equal to 100. At last, he was able to accomplish this task. How did he do it? -Riddles

Description : A student was once given a simple task to accomplish. He was given 6 numbers: 1, 10, 20, 30, 40, and 80, and was told to sum them together to be equal to 100. At last, he was able to accomplish this task. How did he do it? -Riddles

Last Answer : He read 10 and 80 backwards to give him 01 and 08 respectively. So, 1 + 01 + 20 + 30 + 40 + 08 = 100.

There are two numbers whose product added to the sum of their squares is 109, and the difference of whose squares is 24. What are the two numbers? -Riddles

Description : There are two numbers whose product added to the sum of their squares is 109, and the difference of whose squares is 24. What are the two numbers? -Riddles

Last Answer : 5 and 7. (5)² = 25 (7)² = 49 (5x7)+25+49=109 49-25=24

Show that If m > 1, then the sum of the mth powers of underline (n)even numbers is greater than n (n + 1)^m -Maths 9th

Description : Show that If m > 1, then the sum of the mth powers of underline (n)even numbers is greater than n (n + 1)^m -Maths 9th

Last Answer : answer:

If a1, a2, .... an are positive numbers such that a1.a2.a3 .... an = 1, then their sum is -Maths 9th

Description : If a1, a2, .... an are positive numbers such that a1.a2.a3 .... an = 1, then their sum is -Maths 9th

Last Answer : answer: