y
What is the product of y and 10
x = 10, y = 25
1/x + 1/y y/xy + x/xy (y+x)/xy= 10/20 10/20=1/2 1/2 is the answer.
Suppose the numbers are x and y Then the sum of their reciprocals is 1/x + 1/y = y/xy + x/xy = (y+x)/xy = 10/20 = 1/2
Put 0 in for x and solve for y to find the y intercept. Put 0 in for y and solve for x to find the x intercept. -4(0)+3y=10 y=10/3 y intercept is (0,10/3) -4x+3(0)=10 x=-10/4 x intercept is (-10/4,0)
8
y = 7x-10
2x+y = 10 or y = -2x + 10 so the slope is -2
2y+5y=10 7y=10 y=10/7
It is: 57*10 = 570.
If y + 3y + 10 = 70, then 4y + 10 = 70, and 4y = 60. We then find that y = 60/4 = 15.
To find the y intercept of the line y=2x+10, we must substitute x=0 into the equation. therefore: y=2(o)+10=10. Therefore the y-intercept is 10. Shortcut: the y intercept of any line in the form y=mx+b is simply 'b'. To find the x-intercept, we substitute y=0 into the equation. Therefore 0=2x+10 -10=2x -5=x Therefore, the x-intercept is -5. Shortcut: the x intercept of any line in the form y=mx+b is simply -b/m.