0
What number times what number equals 220 but can add up to be 29?
Wiki User
∙ 12y ago
249
Ozella Dooley
Wiki User
∙ 12y agoLet the two numbers be a and b.
Then, ab = 220, and a + b = 29 ......thus we can write b = 29 - a.
Substituting for b in the first equation gives : a(29 - a) = 220 : 29a - a2 = 220
Thus, a2 - 29a + 220 = 0.
Solving this using the quadratic formula gives a = 14.5 ± (i√39)/2
Then [14.5 + (i√39)/2] + [14.5 - (i√39)/2] = 29
And, [14.5 + (i√39)/2] x [14.5 - (i√39)/2] = 210.25 -[(i√39)/2]2 = 210.25 - (i2x 39/4) = 210.25 + 9.75 = 220.
The two numbers are conjugate complex numbers, [14.5 + (i√39)/2] and [14.5 - (i√39)/2].
Add your answer:
Earn +20 pts
What number times what number equals 11 when you add it and equals -60 when you multiply it?
15 and -4
What are the different rules in addition?
for algebra, + times + equals -, - times - equals +, add finally two different signs equal -. hope i helped!! :)
Math questions with the answer 336?
24 times 14 equals 336 48 times 7 equals 336 there is an infinite number of ways to get to 336. definitely when you include imaginary numbers
What times what equals 75 and when you add it will equal 28?
103
Solve the equation and explain the steps you use used to solve 744 31?
The answer to 744 times 31 equals 23064. To solve this math problem you will have to take the number 744 and add it 31 times.
What number times what number equals 11 when you add it and equals -60 when you multiply it?
15 and -4
What times what equals 75 but when you add it equals -28?
47
What is the largest number that can be expressed as the product of a positive integers that add up to 100?
2,500 50 times 50 equals 2,500 50 plus 50 equals 100
What is 150 percent of 220?
To find 150 percent of a number, multiply the number by 1.5. In this instance, 1.5 x 220 = 330. Therefore, 150 percent of 220 is equal to 330. Or another way of solving these types of percentages, called whole plus percentages, is simple. 100% of any number is the number itself (100% of 220 is 220) and 50% of any number is exactly half of the said number (50% of 220 is 110) and then add the two together (220 + 110 is 330).
25 add what number equals 41?
66
9any number equals result is add answer is 9?
18
What are the different rules in addition?
for algebra, + times + equals -, - times - equals +, add finally two different signs equal -. hope i helped!! :)
Math questions with the answer 336?
24 times 14 equals 336 48 times 7 equals 336 there is an infinite number of ways to get to 336. definitely when you include imaginary numbers
What times what equals 70 but when you add them it equals 30?
100
What is the answer to 1 equals 6 2 equals 26 3 equals 326 4 equals 4326 5 equals 54326 6 equals?
you add the number (in this case, 6) to the beginning of the continuously growing number : the answer is 654326
Does total mean multiply or plus?
Total=sum or product of an eqation Multiply=to times or add that number by the times the other number Plus or Add=to add one number to another
What times what equals 75 and when you add it will equal 28?
103
