Answer:
Jiri's age is 25.
Step-by-step explanation:
Let P = Pamela's age
and J = Jiri's age. Then
(1) P = J - 12
(2) P + J = 38
Substitute (1) into (2) J - 12 + J = 38
Add 12 to each side J + J = 50
Combine like terms 2J = 50
Divide each side by 2 J = 25
Jiri's age is 25.
14x^2 + 57x -27 divide by (2x+9)
= (7x-3)
This is the concept of statistics. The correct answer is:
There are twice as many participants in the 0-19 age group than in the 60-79 age group. This is because:
Number of participants in the age group 0-19 is 40 participants
Number of participants in the age group 60-79 is 20 participants.
From the above we see that the age group 0-19 is double the number of age group 60-79 years old.
Therefore our answer is option C
Parallel lines has equal slopes. Line y = 2x + 2 has a slope of 2, hence required slope is 2
Required equation is y - y1 = 2(x - x1)
y - 3 = 2(x - 5)
y - 3 = 2x - 10
y = 2x - 10 + 3
y = 2x - 7
