Karla is given the equation 10x + 15 = 20 to solve. she says the solution is 1 2 . which reason justifies her solution? a) karla says that to solve the equation you first add 15 and then multiply by 10. b) karla says that to solve the equation you first multiply by 10 and then add 15. c) karla says that to solve the equation you first subtract 15 and then divide by 10. d) karla says that to solve the equation you first divide by 10 and then subtract 15.

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.

the answer is two. hope this !