no, y does not relate to x. x is going down by .5 and y is going down by a third of the original number.
First, calculate 18% of 23.
23 x 0.18 = 4.14
Then, add this value (the increase) to the original value of 23.
23 + 4.14 = 27.14
Rounding off, we get 27.
Answer:
Length of arc AB = 4π
Step-by-step explanation:
Formula to get the arc length is given by,
Length of arc = 
Here, θ = central angle subtended by the arc AB
r = Radius of the circle
By substituting the values in the formula,
Therefore, length of arc AB = 
= 40π
4(x+3)=7
The mistake is with his final answer, he wrote down 4x=1.
When you do 4(x)4(3), the answer is completely different from what Andre said. He did wrong calculations.
4x3=12
7-12= -5
Which means it should be 4x=-5 as the final answer.