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This depends on how accurate an estimate is required. If your answer need only be whole numbers, then 0.69 is slightly larger than 2/3 which is 0.66 = you could estimate 14 - which is 2/3 of 21. -- Alternatively, if your answer ought to be to one decimal place then you could say that it is nearly 70% and multiply 21 by 0.7 and get 14.7
What else can I help you with?
What is 21 x 21?
21 x 21 = 441
What is the number increased by one-half of itself is equal to 21?
let X = number X + 1/2 X = 21 1.5 X = 21 X = 14
What is the greatest common factor of 21 and 84?
The GCF of 21 and 84 is 21. Since 21 is a factor of 84, it is automatically the GCF.It is: 21
What multiplication facts equal 21?
1 x 21 3 x 7 7 x 3 21 x 1
What times a number equals 21?
1 x 21, 3 x 7 = 21
What is 069?
069 = 69
What is the equivalent fraction of 21 over 27?
it is that this website does not have estimating with percents STUPID webste.
What is 45 X 60?
The answer to that is 2700. If your estimating, the answer will be 3000. Hope that helped!
What is the answer of estimating the quotient in 4471 and 7?
4000 x 8 = 32000
What is 483.62 times 29.77 estimating?
480 x 30 = 14400
What does 56 times 34 by estimating?
60 x 30 = 1800
What is pokedex number 069 in Pokemon emerald?
bellsprout is #069
What is 21 x 21?
21 x 21 = 441
What is 21 x 21 x 21?
9261
What does x equal in the equation 437 (21 plus x)(21 - x)?
To solve for ( x ) in the equation ( 437(21 + x)(21 - x) ), we can first simplify the expression using the difference of squares: ( (21 + x)(21 - x) = 21^2 - x^2 ). This gives us ( 437(441 - x^2) = 0 ). Setting ( 441 - x^2 = 0 ) leads to ( x^2 = 441 ), resulting in ( x = 21 ) or ( x = -21 ).
What is the answer to 35 divided by 535.6 with estimating?
0.0653
What is the ratio of the sum of two numbers whose product is 21 to their difference?
Two specific cases of pairs of numbers whose product is 21 are: 1 x 21 and 3 x 7. The ratio of their sum to their difference is: 1 x 21 ... (21+1):(21 - 1) = 22:20 = 11 : 10, and 3 x 7 ... (3+7):(7-3) = 10:4 = 5 : 2. To find a general formula, let the larger number be x and the smaller be 21/x. Their sum is x + 21/x = (x^2 +21)/x Their difference is x - 21/x = (x^2 -21)/x Ratio of sum to difference is [(x^2+21)/x] / [(x^2-21)/x] = [(x^2+21)/x] * [x/(x^2-21)] = (x^2+21)/(x^2-21) Check: This formula produces the results found above.
