Answer:
9
Step-by-step explanation:
The slopes are perpendicular lines are opposite reciprocals.
If one line has slope - 1/9, then the perpendicular to it has slope 9/1 or 9.
Answer:
6 turns into 2, 18 turns into 6, and 12 turns into 4.
Step-by-step explanation:
Answer:x=3
Step-by-step explanation:
Add 4 to both sides and get 3x=5+4
Simplify 5+4 to 9 and get 3x=9
Divide both sides by 3 and get x=9/3
Simplify 9/3 to 3 and get the answer x=3
Answer:
114
Step-by-step explanation:
Ratio of red marbles to black marbles is 19:1. (Data from 3rd sentence)
19+1= 20
20 units= 120 (Data from 1st sentence)
1 unit= 120/20= 6
19 units= 120-6= 114 (Values solved in working above)
Ans: There are 114 red marbles.
i hope i cleared your doubt
Answer:
The measure of each interior angle would be 135
Step-by-step explanation:
In order to find this, we can note that each octagon has interior angles measuring 1080. So we can divide that number by the number of angles to get the exact size.
1080/8 = 135