Question

If the DNA strand in a molecule could be stretched out to 2.0 meters, how much is this in feet and inches?

a) 6.56 feet (78.74 inches)
b) 4.78 feet (57.36 inches)
c) 3.28 feet (39.37 inches)
d) 1.64 feet (19.69 inches)

Answer 1

When a DNA strand in a molecule is stretched out to 2.0 meters, it is equal to 6.56 feet or 78.74 inches, therefore the correct answer is (a) 6.56 feet (78.74 inches).

Step-by-step explanation:

If a DNA strand in a molecule could be stretched out to 2.0 meters, we can convert this length measurement into feet and inches to find the appropriate answer. To convert meters to feet, we use the conversion factor where 1 meter is approximately equal to 3.28084 feet. Therefore, to find out how much 2.0 meters is in feet, we calculate:

• 2.0 meters × 3.28084 feet/meter = 6.56168 feet

Since we want the answer in feet and inches, we need to take the fractional part of the feet measurement to convert it to inches. There are 12 inches in a foot, so we calculate:

• 0.56168 feet × 12 inches/foot = 6.74016 inches

Adding this to the 6 feet, we get:

• 6 feet + 6.74 inches = 6.56 feet (78.74 inches)

Therefore, the correct answer is (a) 6.56 feet (78.74 inches).