A3-pound bag of apples costs $5.25. what is the unit price of a pound of apples?
a) $1.25 b) $1.75 c) $2.25 d) $2.75 per pound
at this rate, how many pounds of apples can be purchased for $17.50?
a) 8 b) 9 c) 10 d) 11 pounds of apples
let x represent the number of pounds of apples and y the total cost of the apples. what is the equation that represents the direct variation between the total cost of the apples and the number of pounds of apples?
a) y = 1.25x
b) y = 1.75x
c) y = 2.25x
d) y = 2.75x

Part a) A 3-pound bag of apples costs $5.25. What is the unit price of a pound of apples?

we know that

To find the unit price divide the total cost by the total pounds

so

therefore

the answer Part a) is the option b

Part b) At this rate, how many pounds of apples can be purchased for $17.50?

by proportion

therefore

the answer Part b) is the option c

Part c) Let x represent the number of pounds of apples and y the total cost of the apples. What is the equation that represents the direct variation between the total cost of the apples and the number of pounds of apples?

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or

In this problem the constant of proportionality k is equal to the unit price of a pound of apples

so

The linear equation is equal to

therefore

the answer Part c) is the option b

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk