Answer:
x(3 + 9) = 3x + 9x = 12x
Step-by-step explanation:
...........
Step-by-step explanation:
(a/b) + (c/d)
Find the common denominator. In this case, bd. So multiply the first fraction by d/d, and the second fraction by b/b.
(ad)/(bd) + (bc)/(bd)
Add the fractions.
(ad + bc) / (bd)
Answer:
Step-by-step explanation:
0 + 2x = 10
2x = 10 -30
2x = -20
X = -20/ 2
X = -10
Answer:
1,3,4. For every 10 students there is 1 teacher. Another example would be 50 students to 5 teachers.
The decimal form of this is .30