Answer:
Her weekly allowance is $8.
Step-by-step explanation:
Let the weekly allowance of Ming is $x.
If she spends half of her weekly allowance playing mini-golf and to earn more money her parents let her wash the car for $5, then the remaining amount of money that she has = 
dollars.
Now, given that 
⇒ 
⇒ x = $8
Therefore, her weekly allowance is $8. (Answer)
Answer:
Conversion of 25m to centimeters: 2500cm
Volume is 2500m^3 (meters cubed)
Step-by-step explanation:
25m x 100cm (that's how many are in a meter) = 2500cm
Volume Formula: length x width x height (or l x w x h)
Length: 50m
Width: 25m
Height: 2m
Therefore, the volume is...
l x w x h
= 50m x 25m x 2m
= 2500m^3
If you looked it up online you could find it. look on safari
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.
