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153 = 13 + 53 + 33 Also: 370 = 33 + 73 + 03 371 = 33 + 73 + 13 407 = 43 + 03 + 73 See Related Links See the Related Links for "Exponentia…ted digit sums" to the bottom for more...
Answer: 45 4 + 5 = 9 x 5 = 45
What is the number of a two digit number that is four times the sum of its digits The tens digit is 3 less than the units digit?
36  b − 3 = a  4(a + b) = 10a + b  4a + 4b = 10a + b Substitute  (b − 3) for a in :  4(b − 3) + 4b = 10(b − 3) + b  4b − 1…2 +4b = 10b − 30 + b  18 = 3b  6 = b  3 = a
Is this exactly how the problem was written?
There exist no numbers which are less than the sum of their digits. This is obvious for single digit numbers, since each number would be exactly equal to the sum of it…s digits. For multi-digit numbers, this still holds true. Let's take a two digit number in the form: ab. Where a and b represent the digits of this number. The sum of the digits of ab = a + b. The number ab = a*10 + b. It should now be obvious that ab will always be greater than a + b. For larger numbers, the difference between the sum of digits and the number only grows, as a number abc = a*100 + b*10 + c, abcd = a*1000 + b*100 + c*10 + d, etc. Proof by exhaustion (via Java code, since this is listed in the programming category): for (int n = 10; n = sumDigits for all 10
If there are two digits than the first one is ten times its value. So as an algebraic equation we get 10A + B - 3 = 7(A x B) This can be simplified to 10A + B - …3 = 7A + 7B and this reduces to 10A - 7A = 7B - B +3 or 3A =6B +3 A solution to this is 3(3) = 6(2) +3 Which would make the original equation 32 = 7(3+2)-3
You are a two digit number your tens diget number is three times your ones digit and the sum of your digit is 12 what is the answer?
Im a 2-digit number the sum of your digits is 6 my units digit is two times my tens digit what am i?
You are a two-digit number your tens digit is 3 times your ones digit The sum of your digits is 12 What number are you?
What is the maximum value of the sum of the digits of the sum of the digits of a three-digit number?
10 9+9+1 = 19 1+9=10
What is the number of a two digit number that is four times the sum of its digits The tens digit is 3 less than the units digit what are you?
Let's break it down: "What is the two digit number ..." x is the 10's place; y is the 1's place; and z is the answer. 10x + y = z "... that is [equal to] 4 times the sum of i…ts digits ..." 4(x + y) = 10x + y "... The tens digit is [equal to] 3 less than the units [1's] digit ..." x = y - 3 Break down the complex equation: 4x + 4y = 10x + y 3y = 6x Substitute the other equation for x, because x = y - 3, and continue: 3y = 6(y - 3) 3y = 6y - 18 -3y = -18 -y = -6 y = 6 So 6 is y, the 1's number. x = y - 3 x = 6 - 3 x = 3 And 3 is x, your 10's number. Almost there! Now find your final answer, z: 10x + y = z 10(3) + 6 = z 30 + 6 = z 36 = z Your answer is 36.
The sum of the two digit number depends on what the number is for e.x. 27 + 32= 59. You get this by first adding the 7 and the 2 together, because if you would line the proble…m up and down the would be lined up directly below or above each other, getting an answer of nine. Then you add the 3 and the 2 together getting an answer of 5. To complete your results you will put the five in the front because it is the sum of 3 and 2 and they were both in the front and then you will write the 9 at the end because it is the sum of the 7 and the 2 and they were both at the end of the number.
11 + 13 + 17 = 41