The diameter of a bicycle’s tires is 2.5 feet. How many revolutions of the tires does it take to travel 1 mild? Use 5280 feet = 1 mile. Round to the nearest tenth.?
for each revolution of the tire , the bicycle travels ... 2.5 π ft
revs = 5280 / (2 π)
10x-10=189+09=+7474=yu*yv
To find the number of revolutions it takes for the bicycle tires to travel 1 mile, we need to determine the distance covered by one revolution of the tires.
The circumference of a circle is determined by the formula C = πd, where C represents the circumference and d represents the diameter. In this case, the diameter of the bicycle tires is given as 2.5 feet.
So, the circumference of one tire is:
C = πd = π * 2.5 feet = 7.85 feet (rounded to two decimal places)
Now, to calculate how many revolutions are required to travel 1 mile (5280 feet), we divide the distance by the circumference of one tire:
Revolutions = Distance / Circumference
Revolutions = 5280 feet / 7.85 feet ≈ 672.81 revolutions (rounded to two decimal places)
Therefore, it takes approximately 672.81 revolutions for the bicycle tires to travel 1 mile. Rounding to the nearest tenth, we get 672.8 revolutions.
n = numbrs of revolutions
Circumference of a tires:
C = d π = 2.5 π = 2.5 ∙ π = 2.5 ∙ 3.14159 = 7.853975 ft
n = 1 mile / C
n = 5280 / 7.853975 = 672.2710474633 revolutions
n = 672.3 revolutions
,
rounded to the nearest tenth.