If jenny wants to keep the ratio of blue yarn to white yarn the same, can she make a scarf using 42 yards of blue yarn? if so, how many white yarn will she need? if not, why not?

Hence, she needed 42 yards of white yarn.

Step-by-step explanation:

Since we have given that

Ratio of blue yarn to white yarn is same

i.e. 1:1

Number of yards of blue yarn she used to make a scarf = 42 yards.

So, number of yards of white yarn she needed to a scarf would be

42 yards.

as there is ratio of 1:1.

Hence, she needed 42 yards of white yarn.

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.

it has the same slope and a different y-intercept

hope this : )