So, basically what they are asking for is the circumference (which is like the perimeter) of the inner and outer circles.
Circumference is: C = 2<span>πr
The radius of the two circles are given so all you need to do is plug it in.
Circumference of the bigger circle (outer tire) is 157ft. Circumference of the smaller circle (inner tire) is 132ft.
The exact answer is 157.07-131.88 = 25.19ft </span>≈ 25ft<span>
</span>
Answer:
B
Step-by-step explanation:
B produces the term 12x that cancels out after subtraction.
<span>X/2 + 3/4 = 7/4
We want to isolate X by itself. Subtract 3/4 from both sides
X/2 = 4/4
X/2 = 1
Multiply both sides by 2 to cancel out the 1/2 on the same side of the X
X = 2</span>
Answer:
a. m/6
b. k-9 (don't get confused with k less than nine)
c. 2x
d. 2x+4
e. n/7
f. (a+b)/4
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