Johns age increased by 11 is 5 less then 5 times his age how old is he

x + 11 = 5x - 5 which gives 4x = 16 i.e. x = 4

Thus John is 4 years old

We will call X to John's age.

X + 11 = 5X - 5

11 + 5 = 5X -X

16 = 4X

X = 16/4 = 4

ANSWER John is 4 years old

We can check it by replacing this age

4 + 11 = 5*4 - 5

15 = 20 - 5 = 15 ¡Checked!

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.

47 - 90 = 43

43 - 180 = x

x = 137