Pamela's age is two times it's age. The sum of their ages is 69 what is jiri’s age?

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  23

Step-by-step explanation:

Let J represent Jiri's age. Then Pamela's age is 2J and the sum of their ages is ...

  J + 2J = 69

  3J = 69 . . . . .collect terms

  J = 23 . . . . . . divide by 3

Jiri's age is 23.

Step-by-step explanation:

2x+x = 69

3x= 69

x= 69/3

x= 23

pamela = 2x = 46 years

jiri= 23 years

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.