Answer:
The spinner has 6 equal-sized slices, so each slice has a 1/6 probability of showing up.
I guess that we want to find the expected value in one spin:
number 1: wins $1
number 2: wins $3
number 3: wins $5
number 4: wins $7
number 5: losses $8
number 6: loses $8
The expected value can be calculated as:
Ev = ∑xₙpₙ
where xₙ is the event and pₙ is the probability.
We know that the probability for all the events is 1/6, so we have:
Ev = ($1 + $3 + $5 + $7 - $8 - $8)*(1/6) = $0
So the expected value of this game is $0, wich implies that is a fair game.
This is an expression if she only gets pedicure
y = 35
If she wants to get massage, multiply the cost for a minute with the number of minutes.
Find cost per minute first
cost = 50/20
cost = 2.5
So the expression would be
y = 35 + 2.5x
y = 2.5x + 35
LIST has 5 lines: L has two, I has 1, T as 2. It has one curve: S.
Therefore LIST = 51
LOAD has 6 lines, 2 curves.
L has 2 lines, A has 3 lines, D has one line (also one curve)
O is one curve, D has one, so LOAD= 62
the square area is 4x4 is 16
each semicircle has a diameter of 4cm.
area of a semicircle is pi * r^2/2
3.14*2^2/2=6.28
since there are 45 sides of a square, 6.28x3=18.84
add 18.84 and 16.
34.84 is your answer.
