N–2=10n+42
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n = (-44)/9

Step-by-step explanation:

Solve for n:

n - 2 = 10 n + 42

Subtract 10 n from both sides:

(n - 10 n) - 2 = (10 n - 10 n) + 42

n - 10 n = -9 n:

-9 n - 2 = (10 n - 10 n) + 42

10 n - 10 n = 0:

-9 n - 2 = 42

Add 2 to both sides:

(2 - 2) - 9 n = 2 + 42

2 - 2 = 0:

-9 n = 42 + 2

42 + 2 = 44:

-9 n = 44

Divide both sides of -9 n = 44 by -9:

(-9 n)/(-9) = 44/(-9)

(-9)/(-9) = 1:

n = 44/(-9)

Multiply numerator and denominator of 44/(-9) by -1:

n = (-44)/9

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.

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step-by-step explanation: