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WHAT IS 5X-16?
21
Translate this word problem as a system of equations and then solve using substitution Find two numbers whose sum is 58 and whose difference is 16?
Suppose the two numbers are x and y. Then x + y = 58 and x - y = 16 The second equation gives x = 16 + y Substituting this value of x into the first equation gives (16 + y) + y = 58 or 2y + 16 = 58 or 2y = 42 which gives y = 21. Then x = 16 + y gives x = 16 + 21 = 37 So the soln is x = 37, y = 21
16 over 21 divided by 8 over 9?
To divide by a fraction, multiply by its reciprocal. In this instance, 16/21 / 8/9 is equal to 16/21 x 9/8 = 0.857142 recurring (that is, 0.857142857142...)
Two numbers have a product of 80 their sum is 21?
Let the number by 'm' & 'n' Hence mn = 80 (product) m + n = 21 (sum) Hence m = 21 -b Substitute (21 - n)n = 80 21m - n^(2) = 80 n^(2) - 21n + 80 = 0 Factor (n - 16)(n - 5) = 0 Hence n= 16 & m = 5
When the sum of two numbers is 21 When the larger number is subtracted from four times the smaller the difference is 4 what is the two numbers?
17
What is (21 plus 7)x(9-4)-16?
(21 + 7) x (9-4) - 16 (28) x (5) - 16 140 - 16 124
What is the prime factorization of 21 and 16?
21 = 3 x 7 16 = 2 x 2 x 2 x 2 = 24
How many square meters in a room measuring 16 feet x 21 feet?
1 foot = 0.3048 meter 16 feety x 21 feet = (16 x 0.3048) meters x (21 x 0.3048) meters
A number increased by -16 is -21?
5
16 out of 21 is what percent?
16/21 = 0.7619 0.7619 x 100% = 76.2%
What is 21 percent decreased by 16?
It is X*0.21 - 16
What is 21-16 and one fourth?
37
What is the value of x when x 2 plus 5 21?
maybe eight 21 - 5 = 16 = 2 x 8
WHAT IS 5X-16?
21
What is five and one fourth multiplied by itself?
21/4 x 21/4 = 441/16 = 27 and 9/16 5.25 x 5.25 = 27.5625
What are the first 5 non-zero multiples of 21?
-16
Translate this word problem as a system of equations and then solve using substitution Find two numbers whose sum is 58 and whose difference is 16?
Suppose the two numbers are x and y. Then x + y = 58 and x - y = 16 The second equation gives x = 16 + y Substituting this value of x into the first equation gives (16 + y) + y = 58 or 2y + 16 = 58 or 2y = 42 which gives y = 21. Then x = 16 + y gives x = 16 + 21 = 37 So the soln is x = 37, y = 21
