Which is the "Better Buy"?
(Better Deal)
$3.05 for 5 cans of
dog food
OR
$ 1.86 for 3 cans of
dog food
Hint: find BOTH UNIT
RATES,
+

5 cans is 1 cent cheaper

Step-by-step explanation:

divide the amount of cans with the cost

3.05/5 is .61

1.86/3 is .62

120poles

Step-by-step explanation:

Given

Length of each poles of the paddock = 30

Since a square has 4 sides, the perimeter of the square shaped paddock is what we are to look for.

Perimeter of a square = 4L

L is the length of each side of the paddock

Perimeter = 4(30)

Perimeter of the square = 120

Hence he used 120poles for the paddock