$10 plus $10= $1
cause you now buying for 10 people with $10.
The probability of winning the gift card in the first place is always 1/8 no matter how many people have spun the gift card. That being said, by the same principal, the change of them both winning a gift card is 2/16 which reduces to 1/8. So the probability stays the same no matter what. If there was a limited number of gift cards, the probability would change with each spin and each win. But it didn't say the number of cards available changes, just that it stays 1/8.
If B is between A and C, and AB=3x+1, BC=2x-7, and AC=24, then find the value of x and the value of AB
let assume AC is straight line and B is on line
AB + BC = AC
3x+1 +2x -7 = 24
5x -6 = 24
5x = 30
x = 6
