Answer:
3.2
Step-by-step explanation:
Formula to find the simple interest rate :
S.I. =
Formula to find R (simple interest rate) :
R =
Since you have I (interest amount), we can use this formula instead :
R =
R = = 4%/year or 0.04
Now plug this into the first formula
S.I. = = 3.2
i haven't done this in a while so hope this helps !!
Answer:
26 inches
Step-by-step explanation:
The bike tire moves 136 feet in 20 revolutions.
The tire is shaped as a circle. 1 revolution is equivalent to going round the circumference 1 time, hence, the circumference of the bike tire is:
136/20 = 6.8 feet
The circumference of a circle is given as:
C = πD
=> D = C / π
Therefore, the diameter of the bike tire is:
D = 6.8 / 3.14 = 2.17 feet
To convert to inches:
1 feet = 12 inches
2.17 feet = 2.17 * 12 = 26.04 inches ≅ 26 inches
Answer:
$163.5
Step-by-step explanation:
$150 - ($10.5 + $6.75) + $30. 75 = $163.5
The area would be 83.67 cm.
A semicircle is half of a circle. The perimeter of the semicircle would be half of the perimeter (circumference) of the entire circle. The formula for circumference is:
C=πd
Using our information, we have
22.92 = 0.5(3.14)d
22.92 = 1.57d
Divide both sides by 1.57:
22.92/1.57 = 1.57d/1.57
14.6≈d
Since the diameter is 14.6, the radius is 14.6/2 = 7.3.
We use the radius for the area of the semicircle:
A=0.5πr²
=0.5(3.14)(7.3)²
=83.67