2/5 + 2/4 = 8/20 + 10/20 = 18/20 = 9/10
Answer:
x = 165, y = 15
Step-by-step explanation:
1. Well, what does supplementary mean? - The angles add up to 180°.
2. Let's form an equation: x + y = 180°
3. Let's say x is the larger angle and y is the smaller angle.
4. Let's form another equation: x = 150 + y
5. Put the two equations next to each other:
x + y = 180
x = 150 + y
6. We know what x is equaled to, so let's plug it into the first equation!
150 + y + y = 180
150 + 2y = 180
-150 -150
2y = 30
y = 15
7. Now, we know what y is, let's find x!
x + 15 = 180
-15 -15
x = 165
If I'm correct the answer is 30%. I think it is 30% because if you divide 27 by 90 it equals 0.3 which is 30%
Answer:
70 percent
Step-by-step explanation:
Find how many acres were not planted with alfalfa by subtracting 27 from 90:
90 - 27
= 63
Find what percent this is by dividing it by 90:
63/90
= 0.7
So, 70 percent of the acres weren't planted with alfalfa.
The answer is A because 6:12 x3 gets you 18:36.
