30+6(21^0.5) ~ 57.49545 30-6(21^0.5) ~ 2.50455 X*Y=144 X=144/Y X+Y=60 X=60-Y 144/y = 60 - Y 144 = 60Y - Y^2 Y^2-60Y+144=0 Quadratic equation gives you: 30+6(21^0.5) ~57.49545 30-6(21^0.5) ~2.50455
The answer depends on Y.
The answer is y=0 .
2(y - 3)(y - 10)
77
11
60% of y = y * 0.6
If you mean: y = -15x+60 then 15x+y = 60 When y = 0 then x = 4 When x = 0 then y = 60 Coordinates of the line are: (4, 0) and (0, 60)
40 + 60 = 60 + x Addition has a property called the Commutative property which says that: x + y = y + x. So, over here: x = 40 y = 60 Thus, 40 + 60 = 60 + 40
y2 + 12y + 5y + 60 y (y + 12) + 5 (y + 12) (y + 12 )(y + 5)
the answer is 60 and 40. here is how to prove it.x+y=100x*y=100*24simplifyx=100-yx*y=2400substitution(100-y)*y=2400distribute100y-y2=2400multiply by -1y2-100y=-2400add both sides by 2400y2-100y+2400=0simplify(y-60)(y-40)=0divide both sides by (y-60)y-40=0add both sides by 40y = 40go back to (y-60)(y-40)=0 and divide both sides by (y-40)y-60=0add 60 to both sidesy= 60there are two y values. 60 and 40now use substitution to find x using y = 60x+y=100x+60=100subtract 60 from both sidesx=40now substitute the other y value (40)x+40=100subtract 40 from both sidesx=60we now have our 4 values. x=40 and 60, y=60 and 40.the pair of numbers is (60,40)now lets test if we are correctfirst plug x and y into the first equationx+y=10060+40=100100=100now lets plug it into the second equation.x*y=100*2460*40=24002400=2400we have proved the answer!
42 and 18. Assuming x is the first number and y is the second number x + y = 60 x - y = 24 Adding the above 2 equations: 2x = 84 x = 42 Take 1st equation 42 + y = 60 y = 60 - 42 y = 18
xy=-60 x+y=11 x=11-y (11-y)y=-60 x=11+4= 15 or x=11-15= -4 11y-y2+60=0 y= -4 or 15 so the answer is 15 and -4 or -4 and 15
If y + 3y + 10 = 70, then 4y + 10 = 70, and 4y = 60. We then find that y = 60/4 = 15.
Solve these polynomial expressions: .6(.6X) = 60 beomes .36X = 60. Thus X = 60/.36 which equals 166.6666666 = 166.67 and .4(.4X) = Y becomes .16(166.67) = Y Thus Y = 26.67 rounded.
-4x + 6y - 5z = 60At the x-intercept, 'y' and 'z' are zero:-4x = 60 ===> x = -15At the y-intercept, 'x' and 'z' are zero:6y = 60 ===> y = 10At the z-intercept, 'x' and 'y' are zero:-5z = 60 ===> z = -12
30+6(21^0.5) ~ 57.49545 30-6(21^0.5) ~ 2.50455 X*Y=144 X=144/Y X+Y=60 X=60-Y 144/y = 60 - Y 144 = 60Y - Y^2 Y^2-60Y+144=0 Quadratic equation gives you: 30+6(21^0.5) ~57.49545 30-6(21^0.5) ~2.50455