Answer: Option 'A' is correct.
Explanation:
Cost of 9 ounces of apples = $1.89
Cost of 1 ounce of apple is given by
Now, if he bought 1 pound of apple,
Cost of 1 pound of apple = $2.49
Cost of 16 ounces = $2.49
(∵ 1 pound = 16 ounces)
Cost of 1 ounce of apple is given by
So, Second option is the least expensive if he bought 1 pound of apple for $2.49
Then, he will save which is given by
Hence, option 'A' is correct.
The ratio of the area of square PQRS to the area of square ABCD is 5/9
<h3>Area of square ABCD</h3>Assume the measure of the side lengths of the square ABCD is 1, then the area of the square ABCD is:
See attachment for the diagram that represents the relationship between both squares.
<h3 /><h3>Pythagoras theorem</h3>The measure of length PQ is then calculated using the following Pythagoras theorem:
Evaluate the squares
Add the fractions
The above represents the area of the square PQRS.
i.e.
So, the ratio of the area of PQRS to ABCD is:
This gives
Hence, the ratio of the area of square PQRS to the area of square ABCD is 5/9
Read more about areas at:
