Jules has $1,200 and is spending $40 per week. Kelsey has $400 and is saving $40 a week. In how many weeks, will Jules and Kelsey have the same amount of money

week number: 11 if you do count the first time they got the money or week number 10 if you don't count the first time they got the money

Step-by-step explanation:

First time they got money: Julie: 41,200 Kelsey: $400

week 1: Julie : $1,180  Kelsey: $440

week 2: Julie: $1,140  Kelsey: $480

week 3: Julie: $1,100  Kelsey: $520

week 4: Julie: $1,060  Kelsey: $560

week 5: Julie: $1,020  Kelsey: $600

week 6: Julie: $980    Kelsey: $640

week 7: Julie: $940    Kelsey: $680

week 8: Julie: $900    Kelsey: $720

week 9: Julie: $860    Kelsey: $780

week 10: Julie: $820   Kelsey: $820

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.