39.0 is the decimal for it
Answer:
Option D. 5x + 12y + 4z is the corrct one.
Let m and s be the number of math and sociology books sold respectively.
m=s+88 we are also told that:
m+s=426, using m found above in this equation gives you:
s+88+s=426 combine like terms on left side
2s+88=426 subtract 88 from both sides
2s=338 divide both sides by 2
s=169, since m=s+88
m=169+88=257
So 257 math and 169 sociology textbooks were sold.
parallel lines or skew lines
- Parallel lines are in Same plane or Coplanar but donot intersect each other.
- Skew lines lie in same plane but don't intersect each other.