18 - 2x = 4x ....addition property....add 2x to both sides
18 = 6x .... division property...divide both sides by 6
3 = x
(1,1) because x + 2y <4
=1 + 2(1)
= 3 which is less than 4
Answer:
Step-by-step explanation:
So we have the equation:
To solve, subtract 5 from both sides. This is the subtraction property of equality:
The left side cancels:
Subtract on the right.
So, our answer is -7.
48 is the answer my friend. x is 45 more than y. 3+45 is 48
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.
