Don't do the question immediately, read the sentence 3 times and visualize what is it saying. Its just like hitting you from the left to right brain and back to left brain again, but focus thinking on the right, its just confusing as it sounds but its just simplicity in a rather complex sentence if you did not read it carefully. Since R = 5Z then 15Z = 3Y then R = ? Since it means one R = 5Z 15Z = 3y, saying 3times the Y = 15Z So you want to find out R =?, 5Z = R, 10Z = 2Y so R = Y! :D
x+2y-6=z -z -z x+2y-z-6=0 +6 +6 ---------> x+2y-z=6 3y-2z=7 ---------> 0x+3y-2z=7 4+3x=2y-5z -3x -3x ---------> -3x+2y-5z=4 Put them into a matrix, for x,y,z and their answers. Solve for [A]-1[B], and the answer comes to: x= 1.75, y= 1.5, and z= -1.25
Add together like terms: 8z-3y
10 z's.
It works out that: z = -32
if r=5z and 15z =3 then r=10y
r = 5z 15z = 3y (divide by 3 to both sides) 5z = y r = y
It would appear that r = y
If r = 5z, then 15z = 3y, then r = y. This can be solved easily by solving for z in the second equation and substituting into the first equation.
Don't do the question immediately, read the sentence 3 times and visualize what is it saying. Its just like hitting you from the left to right brain and back to left brain again, but focus thinking on the right, its just confusing as it sounds but its just simplicity in a rather complex sentence if you did not read it carefully. Since R = 5Z then 15Z = 3Y then R = ? Since it means one R = 5Z 15Z = 3y, saying 3times the Y = 15Z So you want to find out R =?, 5Z = R, 10Z = 2Y so R = Y! :D
15z² - 22z - 5 = 0 → (5z + 1)(3z - 5) = 0
It is the equation of a line in 3-dimensional space.
27y3 + 125z3 = (3y + 5z)*(9y2 - 15yz + 25z2).
9x + 3y + 5z - 5x + 4z - 7y = 4x - 4y + 9z
9z-5z = 30+z 3z = 30 z = 10
x+2y-6=z -z -z x+2y-z-6=0 +6 +6 ---------> x+2y-z=6 3y-2z=7 ---------> 0x+3y-2z=7 4+3x=2y-5z -3x -3x ---------> -3x+2y-5z=4 Put them into a matrix, for x,y,z and their answers. Solve for [A]-1[B], and the answer comes to: x= 1.75, y= 1.5, and z= -1.25
z = 20 (6x20) + (5x20) = 20