The circumference of a circle is C=2πR, where R is the radius of the circle and π≈3.14.
So if we open the circumference of the circle into a straight line segment, the length of this segment is C=2πR≈2*3.14*R=6.28R
4 rotations mean 4 circumferences that is 4 segments of length 6.28R,
which makes a linear distance of 4*6.28R=25.12R
i: the radius of the smaller wheel is R=r, thus it covers a distance of 25.12r feet
ii: the radius of the smaller wheel is R=2r, thus it covers a distance of 25.12*2r=50.24r (feet)
50.24r is twice 25.12r, thus the larger wheel traveled Twice the distance of the smaller one.
Answer: the larger covered twice the distance of the smaller.
Answer:
The answer is 3x^2+7x+2
Step-by-step explanation:
Multiply each term of the second bracket with the first bracket.
We can write:
(x+2)(3x+1)= 3x(x+2)+1(x+2)
By multiplying the terms we get:
=3x^2+6x+x+2
Now simplify by combining like terms:
=3x^2+7x+2
Thus the answer is 3x^2+7x+2....
Answer:
NO IF 14 POUND BURGERS
NO IF 1/4 POUND BURGERS
Step-by-step explanation:
2 3/8 POUNDS < 10
10- 2 3/8 = 7 5/8 REQUIRED TO MAKE 10 1 POUND BURGERS
If 1/4 pound burgers then you can just divide 1/4 into 2 3/8
= 2 3/8 / 1/4 = 9.5 BURGERS = No
Because 10-9.5 = 0.5 burger required
1/2 burger is not equivalent to 1 whole burger.
80=x+3x
80=4x
20=x
There are 20 girls.
It would be -2i if you simplified it
