Let x + 15 = total penguins
15/ (x +15) = .30
15 = .30x + 4.5
.30x = 10.5
x = 35
Total penguins = 15 + 35 = 50
Double Check
15 / 50 * 100 = 30% Correct!!!
Answer:
76
Step-by-step explanation:
Survey response
Those who liked the proposed plan=380 persons
Those who didn't like the proposed plan=120 persons
We assume that the these are the only people who participated, with those who never took sides being zero
Total number of people surveyed=380 persons+120 persons=500 persons
Percentage of those who liked =
Therefore, the percentage that liked the plan is 76%
The slope of line A is m= 1/3
X=y-2
2y=5x-17
Substituting for x into the second equation, we find
2y=5(y-2)-17
2y=5y-10-17
-3y=-27
y=9
So x=7
Thus, the two numbers are 7 and 9.