Pamela is 12 years younger than jiri. the sum of their ages is 38. what is jiri's age?

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.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: