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How Sum of a number and its square is 380 find the numbers?
x2 + x = 380 x2 + x - 380 = 0 (x + 20)(x - 19) x = 19, -20
What is 20 dollars minus 5 percent?
19 dollars 20 x .05 = 1 20 - 1 = 19
What is 19 times 9?
171. (9 x 20 = 180 - 9 = 171).19 x 9 = 171
What are three consecutive numbers that add up to 60?
Let the first number be x, the second x + 1, and the third x + 2. So, x + x + 1 + x + 2 = 60 3x + 3 = 60 subtract 3 to both sides; 3x = 57 divide by 3 to both sides; x = 19 x + 1 = 19 + 1 = 20 x + 2 = 19 + 2 = 21 Thus the numbers are 19, 20, and 21.
What two numbers multiply to give you -20 but add to give you positive 1?
-19
19 is 20 percent of what number?
95% 19/x = 20/100 1900=20x 1900/20 x=95
What is 19 over 20 times five?
19/20 x 5 = 95/20 or 4 and 15/20 or 4 and 3/4 19/20 = 0.95 x 5 = 4.75
Permutations in 20 numbers ie 1to 20?
That depends how many are taken for each permutation. If you take 1 number at a time, then there are 20 permutations. 2 at a time . . . . . (20 x 19) = 380 3 at a time . . . . . (20 x 19 x 18) = 6,840 4 at a time . . . . . (20 x 19 x 18 x 17) = 116,280 5 at a time . . . . . (20 x 19 x 18 x 17 x 16) = 1,860,480 etc.
How Sum of a number and its square is 380 find the numbers?
x2 + x = 380 x2 + x - 380 = 0 (x + 20)(x - 19) x = 19, -20
What is 19 over 20 as a percent?
Expressed as a percentage, 19/20 is equal to 19/20 x 100 = 95 percent.
19 time what equal 380?
19 x 20 = 380
What is 20 dollars minus 5 percent?
19 dollars 20 x .05 = 1 20 - 1 = 19
What is the permutation of 20 numbers ie 1 to 20?
20 objects, be they books, numbers or elephants, can be arranged in 20! different ways. 20! represents 20 factorial, ie 20 x 19 x 18 .... x 3 x 2 x 1 and is a very substantial figure of 19 digits. In scientific notation it is 2.43290200817664 x 1018
What is the answer to 7x plus 1 equals 20?
7x + 1 = 20 7x = 19 x = 19/7 x = 2.714285 recurring (that is, 2.714285714285..)
How many square feet in 20 feet by 19 feet?
20 x 19 = 380 square feet.
What is 20 percent of 95 dollars?
(95) x (20/100) = (95) x (1/5) = 19
1 plus x plus 2x equals 20then x equals?
1 + x + 2x = 20 So 1 + 3x = 20 so that 3x = 19 then x = 19/3 or 61/3
