Answer:
16
Step-by-step explanation:
9/12=12/x
x=16
Answer:
3/4
Step-by-step explanation:
The slope of the line is given by
m= (y2-y1)/(x2-x1)
= (6-3)/(0 - -4)
= (6-3)/( 0+4)
3/4
Answer:
z = 21 ; y= 16
Step-by-step explanation:
first of all we have to isolate a variable.
In second expression we can obtain:
3y = 2z+6
y = 2/3 z + 2
now we have to substitute this value in the first equation and solve it
8(2/3z+2)-5z = 23
16/3z + 16 -5z = 23
16z +48 - 15z = 69
z = 21
now we have to substitute z in the second equation:
y = 2/3 (21) +2
y = 14+ 2 = 16
y = 16