Pamela's age is two times Jir's age. The sum of their ages is 18. What Is Jiri's age?

Let Jiri's age be x years. Since Pamela's age is 2 times that of Jiri, Pamela's age is 2x years. Since the sum of their ages is 18,

x + 2x = 18

3x = 18

x = 18/3

x = 6

Thus Jiri is 6 years old.

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.