If joe ran 390 feet, how many yards did joe run? a. 130 yards b. 210 yards c. 39 yards d. 11,270 yards
The Correct Answer and Explanation is:
To determine how many yards Joe ran if he ran 390 feet, we need to use the conversion factor between feet and yards.
Conversion:
1 yard = 3 feet
So, to convert 390 feet to yards, divide by 3:390 feet3 feet per yard=130 yards\frac{390 \text{ feet}}{3 \text{ feet per yard}} = 130 \text{ yards}3 feet per yard390 feet=130 yards
Correct answer: A. 130 yards
Explanation
To solve this problem, it’s essential to understand the relationship between feet and yards. In the U.S. customary system of measurement, which is commonly used for measuring distances in sports and daily activities, 1 yard is equal to 3 feet. This is a basic unit conversion fact that allows us to switch between different measurement units easily.
Joe ran 390 feet, and we are asked to express this distance in yards. Since each yard is composed of 3 feet, dividing the total number of feet by 3 gives us the equivalent number of yards. That is:390÷3=130390 \div 3 = 130390÷3=130
This means Joe ran a total of 130 yards. It’s a straightforward arithmetic operation, but it highlights the importance of knowing unit conversions in solving real-world problems. In many everyday scenarios, such as running, building, or even planning travel routes, understanding how to switch between feet, yards, and other units like miles or meters is extremely helpful.
The other answer choices are incorrect because they either involve mathematical errors or are unreasonable given the problem:
- B. 210 yards would imply Joe ran 630 feet (210 × 3), which is too much.
- C. 39 yards equals 117 feet, which is far less than 390.
- D. 11,270 yards equals 33,810 feet, which is vastly more than 390.
Thus, the only logical and mathematically correct answer is A. 130 yards. This problem reinforces a fundamental math skill—unit conversion—and its role in interpreting everyday measurements accurately.
