Final answer:
To find the product of 109 ft 11 in and 13, first convert feet to inches, multiply, then convert back to feet and inches. The result is approximately 1428 feet 11 inches.
Step-by-step explanation:
To find the product of 109 ft 11 in and 13, first convert feet to inches, multiply, then convert back to feet and inches. The result is approximately 1428 feet 11 inches.
The student has asked to multiply 109 feet 11 inches by 13. To calculate this, we first need to convert the measurement to a single unit, then multiply, and convert back if necassary:
- There are 12 inches in 1 foot, so 109 feet is equivalent to 109 x 12 inches, which equals 1308 inches. Adding the 11 inches gives us a total of 1319 inches.
- Now, we multiply 1319 inches by 13, which equals 17147 inches.
- Finally, to convert inches back into feet, we divide by 12. So, 17147 inches ÷ 12 is approximately 1428 feet 11 inches.
Therefore, 109 ft 11 in x 13 is approximately 1428 feet 11 inches.