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Q: If y is 20 when x is 8 what is y when x is 14?
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Which two numbers have the mean of 10 and the range of 8?

6 and 14 Solution x - y= 8, so x =8 + y, (x + y)/2 = 10, x + y = 20, Substituting x = 8 + y, we have: 2 y + 8 = 20, or 2y = 12, y = 6, x = 6+8= 14


The sum of two number is 20 and their difference 4 Find the numbers?

x+y=20 x-y=4 2x=24 x=12 y=8


The difference between two numbers is 20 and their sum is 48 Find the numbers?

x=number 1, y=number 2 {x-y=20} {x+y=48} x=y+20 y+20+y=48 2y=28 [y=14] x=14+20 [x=34]


What is the ordered pair of X equals 2y - 2 and 3x - y equals 14?

x = 2y - 23x - y = 143(2y - 2) - y = 146y - 6 - y = 145y - 6 = 145y = 20y = 4x = 2(4) - 2x = 8 - 2x = 6The ordered pair is (6,4).


What. A proportional relationship exists between x and y. When x=8 the value of y is 14. A) Write an equation for y in terms of x.?

Please dont mind the โ€whatโ€


How do you graph and shade x plus y equals 8 x equals 6 5x plus 2y equals 20?

To graph them, you need to put them into the formula y=mx+b. If x+y=8 subtract x to get y=-x+8. 8 is the y-intercept and your line should be heading downward from left to right.


If 4 multiplied by y eqeals x and x added by y eqeals 10 what is the value of x and y?

14


How do you factor this x raised to the power of 8 y raised to the power of 8?

x^8 - y^8 = (x - y)(x + y)(x^2 + y^2)(x^4 + y^4)


Where do the lines 5x 3y 20 and 2x - y -14 intersect?

I presume that you mean 5x + 3y + 20 = 0 and 2x - y - 14 = 0. First put the formulae in the form y = mx + c. 3y = -5x -20 y = -5/3 x -20/3 and y = -2x + 14 Substitute the second formula into the first -2x - 14 = -5/3 x -20/3 -6x - 42 = -5x - 20 -42 = x - 20 x = -22 Substitute into equation y = -2x + 14 y = -2 x -22 + 14 y = 44 + 14 y = 58 Therefore the two lines meet at point (-22, 58).


What are the solutions for the equations x equals 4y and 3x-2y equals 20?

x = 4y 3x - 2y = 20 Substituting the value of x into the second equation, 3*(4y) - 2y = 20 ie 12y - 2y = 20 or 10y = 20 so that y = 2 Then x = 4y = 4*2 = 8. So (x , y) = (8 , 2)


Evaluate x plus y for x 16 and y 14?

If you mean: x = 16 and y = 14 then x+y = 30


What is the answer to y equals 3x-1?

4


Solve using elimination x plus y equals 8 and x minus y equals 6?

X + y = 8 x - y = 6 add equations to eliminate y 2x = 14 x = 7 substitute 7 + y = 8 y = 1


What is the solution of y x 4 y 3x 8?

If you mean: y = x+4 and y = 3x+8 then x = -2 and y = 2


What is the value of y if 3y plus 8 equals 5y-20?

If: 3y+8 = 5y-20 Then: 3y-5y = -20-8 So: -2y = -28 And: y = -28/-2 => y = 14


What sum of two numbers is 8 and their difference is 12 Find the numbers?

Let X be one number and Y the other. So, X + Y = 8 and X - Y = 12 Solve the set of equations simultaneously or use substitution method. X + Y = 8 X - Y = 12 (ADD THIS EQUATION TO FIRST ONE) _______________ 2X = 20, So X =10 and solving for Y using either equation, Y = -2


Find Two Numbers with a mean of 24 and a difference of 8. Use simultaneous equations. Full working please?

Take the two numbers as X and Y. The mean of the two numbers would be (X+Y)/2 which will be equal to 24. So : (X+Y)/2 = 24 X+Y=48 - This is equation no. 1 The difference between the numbers is X-Y which is equal to 8: X-Y=8 - This is equation no. 2 Adding the two simultaneous equations above would give: X+Y + X-Y=48 + 8 2X=56 So: X=28 Substitute this in any one of the above equations: Equation no. 1 - 28 + Y=48 Y=20 So the two numbers are 28 and 20.


What numbers can you multiply to get 8 and subtract to get -6?

14


What is the value of y when x is 8?

The relationship has to be defined further to answer as it could represent any number. For example if y-x=12 y would equal 20.


X varies directly with y and inversely with z x equals 20 when y equals 8 and z equals 4 Find x when y equals 4 and z equals 8?

The answer is x=10. If: x=20 y=8 z=4 then: y=8/2=4 z=4*2=8 since x varies directly with y, meaning whatever happens to y, happens to x, so if y was divided by 2, then x should be divided by 2. After all, the inverse of division is multiplication.


What is y equals x plus 8?

y=x+8 is a linear equation. Y is the Y point on a graph, X is the slope, and 8 is the y intercept


How do you find the equation of a line through 10 14 parallel to 1y equals -2x plus 4?

The slope will be the same but the y intercept will change:- y -14 = - 2(x - 10) y -14 = -2x +20 y = -2x +20 +14 y = -2x +34


If x equals 2 and y equals 5 then 7x equals 4y equals?

If x=2, then 7x = 14 and if y=5 then 4y=20.


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 now distribute the y to both -14 and -y. -14y-y^2=-120 moving everything to one side we get 0=y^2+14y-120 now it's just a matter of solving for y, which can be found using the quadratic equation (-b+-(b^2-4ac)^(1/2))/(2a), where a=1, b=14, and c=-120. Let's try plus first (-14+(14^2-(4)(-120))^(1/2))/2 (-14+(196+480)^(1/2))/2 (-14+26)/2 6 so y=6. Let's plug that into one of the equations we had, x+y=-14. x+6=-14 x=-20 To see if this works, let's try y=6 and x=-20 on both equations -20(6)=-120 -20+6=-14 They work! By the way, if we had tried minus in the quadratic equation, we would've gotten -20 for y and x as 6.


X plus y equals 10 y equals X plus 8?

x + y = 10 y = x + 8 so, x + (x + 8) = 10 2x + 8 = 10 2x + 8 - 8 = 10 - 8 2x = 2 x = 1 and y = 9 because y = x + 8 y = 1 + 8 y = 9