<span>The horizontal axis in the coordinate plane is called the x-axis. The vertical axis is called the y-axis. The point at which the two axes intersect is called the origin. The origin is at 0 on the x-axis and 0 on the y-<span>axis</span></span>
Answer:
3
Step-by-step explanation:
Sove the system:
x: Mary´s age
y: Mom´s age:
x + y = 67
3x + 7 = y
Replace y in the first equation:
x + 3x + 7 = 67
4x = 67 - 7
4x = 60
x = 15 yrs.
y = 67 - 15 = 52 yrs
Answer:
nope
Step-by-step explanation:
X-y<0 add y to both sides
x<y or if you prefer
y>x