1. the weekly ad for a local grocery store advertises a 5 pound bag of organic apples for $13.95. round each rate to the nearest hundredth if needed. (a) find both unit rates. (b) which unit rate is typically used? explain.

a)

$2.79 per pound.

$0.93 per apple.

b)

Unit price per pound is typically used because weight and size of every      apple is not same.

Step-by-step explanation:

5 pound bag of organic apples = $13.95

1 pound bag of organic apples = $13.95/5

                                                   = $2.79

The unit price of apples that cost $13.95 for 5 pounds is $12.79 per pound.

As a general rule, 1 pound of apples is equal to: 4 small apples. 3 medium apples. 2 large apples. So, here we assume that apples are of medium size.

3 apples cost = $2.79

The unit price means 'what is the cost of 1 apple'

1 apple cost    =$2.79/3

                       =$0.93

The unit price of apples that cost $2.79 for 3apples is $0.93 per apple.

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 opening of this porabola is facing up

step-by-step explanation: