Horatio has 57 coins consisting of nickels, dimes, and quarters. he has twice as many dimes as
nickels. if the coins are worth a total of $7.25, which system of equations is used to determine
how many of each coin horatio has?
in + d + 9 = 57
n = 20
5n + 10d + 259 = 7.25
n + d + 9 = 57
n = 2d
0.05n + 0.100 + 0.259 = 7.25
nt d + 9 = 57
d = 2n
5n + 10d + 259 = 7.25
nd + 9 = 57
d = 2n
0.05n + 0.10d + 0.259 = 7.25

(2,9)

i think thats the answer i checked it on google

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

what is the graph

step-by-step explanation:

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.