Determine which pizza is the better buy: A 10-inch diameter pizza for $8.99 or a 6-inch diameter pizza for $5

10-inch diameter pizza for $8.99

6-inch diameter pizza for $5

p.s. There are only two options

what do you mean by a better buy? square inches per dollar?

If so, then just divide each pie's area by its price to get the unit rate of in^2/$

I really need help can you help me with this

To determine which pizza is the better buy, we need to calculate the price per square inch for each pizza.

For the 10-inch diameter pizza:
- The radius is half the diameter, so the radius is 10/2 = 5 inches.
- The area of a circle is calculated using the formula A = πr^2. Plugging in the radius, we get A = π * 5^2 = 25π square inches.
- The price per square inch is therefore $8.99 / 25π ≈ $0.114 per square inch.

For the 6-inch diameter pizza:
- The radius is half the diameter, so the radius is 6/2 = 3 inches.
- The area of a circle is calculated using the formula A = πr^2. Plugging in the radius, we get A = π * 3^2 = 9π square inches.
- The price per square inch is therefore $5 / 9π ≈ $0.176 per square inch.

Comparing the two options, the 10-inch diameter pizza has a lower price per square inch ($0.114) compared to the 6-inch diameter pizza ($0.176). Therefore, the 10-inch diameter pizza for $8.99 is the better buy in terms of value for money.

To determine which pizza is the better buy, we need to compare their prices per square inch. Here's how you can calculate it:

For the 10-inch diameter pizza:
1. Calculate the radius: radius = diameter / 2 = 10 / 2 = 5 inches.
2. Calculate the area: area = π * radius^2 = 3.14 * 5^2 = 3.14 * 25 = 78.5 square inches.
3. Calculate the price per square inch: price per square inch = price / area = $8.99 / 78.5 = $0.115 per square inch.

For the 6-inch diameter pizza:
1. Calculate the radius: radius = diameter / 2 = 6 / 2 = 3 inches.
2. Calculate the area: area = π * radius^2 = 3.14 * 3^2 = 3.14 * 9 = 28.26 square inches.
3. Calculate the price per square inch: price per square inch = price / area = $5 / 28.26 = $0.177 per square inch.

Comparing the price per square inch, we can see that the 10-inch diameter pizza for $8.99 has a lower price per square inch ($0.115) compared to the 6-inch diameter pizza for $5 ($0.177). Therefore, the 10-inch pizza is the better buy in terms of value for money.