What numbers multiply to 400 but add up to 40?

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20 + 20 = 40
20 x 20 = 400
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What 2 numbers add up to -45 and multiply to -196?

1) x + y = -45 2) xy = -196 solve for x in equation 2 by dividing both sides by y x= -196/y plug this value for x into the first equation -196/y + y = -45 subtract y from both sides -196/y = -45-y multiply both sides by -y 196 =45y + y 2 subtract 196 from both sides 0 = y 2 + ( Full Answer )

What two numbers multiply to 60 and add up to -23?

-3 and -20 In order to multiple to a positive number and add to a negative one, both the numbers in question must be negative. The factors of 60 are: . 1, 60 . 2, 30 . 3, 20 . 4, 15 . 5, 12 . 6, 10 The third pair listed, 3 and 20, will add up to a positive 23. So all tha ( Full Answer )

What two numbers add up to six but multiply to 1?

a+b=6, or a=6-b a*b=1 substitute for a in the 2nd equation, using the first equation: (6-b)*b=1 -b 2 +6b-1=0 b 2 -6b+1=0 Using the quadratic equation, b = (6 +- (36-4) .5 )/2 = 3 +- 2(2) .5 a = 6 - (3 +- 2(2) .5 ) = 3 +- 2(2) .5 (a,b) = (3+2(2) .5 ,3-2(2) .5 ) or (3-2(2) .5 ,3+2 ( Full Answer )

What two numbers add up to 19 and multiply to -150?

-6 and 25. To find that answers I found multiples of 150. 1 x 150 = 150 2 x 75 = 150 3 x 50 = 150 5 x 30 = 150 6 x 25 = 150 I immediately noticed that 25 - 6 = 19, so you know that the 6 is negative because if it was -25 and a positive 6 the answer would be -19.

What 2 number multiply to -120 and add up to -14?

This is algebra. Let's take 2 numbers, x and y. What we want is xy = -120 and x+y = -14. So we have two equations. Let's solve for one of the numbers and move that over to the other equation. x+y=-14 x=-14-y Let us now plug that x into the other equation. (-14-y)y=-120 We n ( Full Answer )

What two numbers multiply and add up to 9?

a+b = ab = 9 so a(9-a) = 9 = -(a-9/2)^2 +81/4 so a-9/2 = sqrt(45/4) = +- 3/2 sqrt(5) Therefore the two numbers are (9 + 3 sqrt(5))/2 and (9 - 3 sqrt(5))/2

What two number multiply to 25 and add up to 9?

The only factors of 25 are: 1, 5, and 25. None of those factors add up to 9, let alone add up to 9 and multiply to 25. If you were trying to solve for x in a quadratic equation, you may need to use the quadratic formula. Assuming a = 1, b = 9, and c = 25 (x^2 + 9x + 25): x = (-b +- sqrt(b^2 - 4a ( Full Answer )

What two numbers add up to be 20 but multiply to be 204?

Let's list out the numbers that multiply to 204 first. 1 and 204 2 and 102 3 and 68 4 and 51 6 and 34 12 and 17 Since none of these number pairs add up to 20, there is either a mistake in the question, or it is not able to be solved.

What numbers multiply to -56 and adds up to 1?

8 & -7 (see below) 1. x * y = -56 2. x + y = 1 We can rewrite 2. as y = -x + 1 We can then substitute this into 1. to give: x (-x + 1) = -56 -x 2 + x = -56 -x 2 + x + 56 = 0 This factors to: (-x + 8) (x + 7) = 0 Therefore: -x + 8 = 0 x = 8 and x + 7 = 0 x = -7 T ( Full Answer )

What two numbers multiply to 140 and add up to 31?

If we call the two numbers a and b then ab = 140 and a + b = 31. Solving the second equation for b results in b = 31 - a. Then substituting this back into the first equation results in: a(31 - a) = 140 Distribute and subtract 31 from both sides: -a 2 + 31a - 140 = 0 Use the quadratic ( Full Answer )

What two numbers add up to 6 but multiply to 10?

There are no integer solutions, but there are complex (imaginary number) solutions, where y 2 - 6y +10 = 0 for y and x = 6-y --- You have two equations: x + y = 6 x * y = 10 x= 6-y and sub in y*(6-y) = 10 y^2 - 6y + 10 = 0 (quadratic equation) y = -b +/- sqrt(b^2-4ac)/2a = 6/2 + ( Full Answer )

What numbers multiple to 400 and add up to -50?

-10 and -40 multiply to 400 (because the negative signs cancel each other) and add to -50. Please note that WikiAnswers is not here to do your homework for you. If this question is from work you have been assigned by a teacher or professor, I suggest you do the work yourself instead, which will hel ( Full Answer )

Is there 2 numbers that multiply to -84 and add up to 25?

-3 and 28 x*y=-84 || x+y=25 (What's known) x=-84/y || x=25-y (Solve for x) -84/y=25-y (Set them equal using the solved x's) -84=25y-y^2 (Simplify) y^2-25y-84=0 (Solve for 0) (y-28)(y+3)=0 (Factor) y=28|y=-3 (Solve for solutions) Factors of 84: 1|84 2|42 3|28 4|21 6|14

What are the numbers when you add you get -3 when multiplied you get 40?

There are no two real numbers that do. Using complex numbers, these two do: (- 3 / 2 + i √151 / 2 ) & (- 3 / 2 - i √151 / 2 ) . Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to ( Full Answer )

What two numbers add up to 4 but multiply to -12?

-2+6=4 and if you multiply -2•6 it equals -12 If you didnt know that is called quadratic factoring I think but I remember doing this school year just passed so that's how I know it so well but anyways... Your Welcome :-)

What 2 number add up to -19 and multiply by 24?

Let x and y be the unknowns. Based on the given problem, we have: x + y = -19 [The sum of two numbers is -19] xy = 24 [The product of two numbers is 24] Solve for these numbers either by elimination or substitution method. The recommended choice is substitution method. Solve for y for the second ( Full Answer )

What two numbers multiply to 864 and add up to 48?

As Ironnica knows, I love questions like this! So, I would set up two equations: xy=864 x+y=48 By using subtraction on the second equation, y=48-x Substituting this in the first equation, x(48-x)=864 Simplifying that gives -x 2 +48x=864 I'm going to subtract 864 from both sides to get-x 2 +48x-864 ( Full Answer )

What two numbers multiply to 3969 and add up to 36?

There are no numbers that multiply to form 3969 and add to form36. . At the far minimum end, you have: (34 + 2) = 72. At the maximum (middle), you have: (18 * 18) = 324. So, there are no numbers.

What multiplies to get 400 but adds to get 120?

116.5685 and 3.4315 (accurate to 4 decimal places) 1. x * y = 400 2. x + y = 120 Rearranging 2 gives 3. y = -x + 120 Substituting this value for y into 1. gives x * (-x + 120) = 400 -x 2 + 120x = 400 -x 2 + 120x - 400 = 0 This is now a quadratic equation and can be solved using thequadratic ( Full Answer )

What two numbers multiply into -20 and adds up to 8?

Because the 20 is negative then one of the numbers has to be negative. Therfore, the difference of the numbers' values must be 8. Product Difference 1x20 19 2x10 8 4x5 1 Obviously, -2x10 are the numbers.

What two numbers add up to -20 and multiply to 24?

The factor pairs of 24 are (24,1)(12,2)(8,3)(6,4) Even considering their negative counterparts, none of them add up to -20 Another Answer:- The numbers are: (-10+square root of 76) and (-10-square root of 76)

What prime numbers add up to 40?

2 3 5 7 11 13 17 19 23 29 31 and 37 are the prime numbers you canuse. Possible options are: 3 + 37 = 40 11 + 29 = 40 2 + 7 + 31 = 40 3 + 7 + 13 + 17 = 40 17 + 23 = 40 3 + 7 + 13 + 17 = 40