Radius of a wheel = 13 inch
= 1.08333 ft
circumference of a wheel = 2×pi×r^2
= 2 × (22/7) × 1.08333^2 ft
= 2 × (22/7) × 1.1736 ft
= (44/7)×1.1736 ft
= 51.6384/7 ft
= 7.3769142857 ft
distance covered in one minute = 37 × 60 ft/min
= 2220 ft/min
now, revolution per minute = 2220 / 7.3769142857
= 300.93884
therefore her wheels are making 300.93884 revolutions per minute
She earns $400 for 40 hours, so she earns $10 each hour.
6 x 10 = 60
She earns $60 for 6 hours of work.
Answer:
0.0625
Step-by-step explanation:
hope that helps.
Yes, it is kinda hard to explain so look this up--- linear equation calculator in equation form
