Final answer:
To find out how much concrete the larger driveway will require, we multiply the amount of concrete required for the original driveway by 2 1/2. Therefore, 6 2/3 cubic yards of concrete will be required for the larger driveway.
Step-by-step explanation:
To find out how many yards of concrete will be required for the larger driveway, we need to calculate 2 1/2 times the amount of concrete required for the original driveway.
The original driveway required 5 1/3 cubic yards of concrete, so to find out how much concrete the larger driveway will require, we can multiply this by 2 1/2.
2 1/2 times 5 1/3 can be calculated by first converting 2 1/2 into a mixed number: 2 1/2 = 5/2. Then, multiply 5/2 by 5 1/3.
5/2 * 16/3 = 40/6 = 20/3 = 6 2/3 cubic yards.