1
Math Review
2. c + 19 = 42
x =8
8
4. x - 40 = 51
3.
5. 3a = 21
ttttttttttttttttttttttttttttttttt
1. a – 24 = 25
2
1. 199 + y = 1000
2. 112 = 14
3.
4.
x
x - 171 = 371
a = 3
85
5. 342 = s + 43
1
Math Review
a = 49
ttttttttttttttttttttttttttttttttt
1. a – 24 = 25
2
1. 199 + y = 1000
y = 801
1
Math Review
c = 23
ttttttttttttttttttttttttttttttttt
2. c + 19 = 42
2
2. 112 = 14
x=8
x
1
x
= 8
8
x = 64
ttttttttttttttttttttttttttttttttt
3.
Math Review
3.
2
x - 171 = 371
x = 542
1
x - 40 = 51
x = 91
ttttttttttttttttttttttttttttttttt
4.
Math Review
4.
2
a = 3
85
a = 255
1
Math Review
a = 7
ttttttttttttttttttttttttttttttttt
5. 3a = 21
2
5. 342 = s + 43
s = 299
What am I Learning Today?
Probability
How will I show that I learned it?
Determine and use ratio to represent the
probability of a given event.
The Weather
The Lottery
Powerball
Price to play
$1
Select 5 numbers from a set of 59 white balls
and one number from 39 red Powerballs.
The order in which the white balls are drawn
does not matter.
The Lottery
Matches
Prize
Odds of Winning
0 numbers, plus Powerball
$3
1 in 62
1 number, plus Powerball
$4
1 in 124
2 numbers, plus Powerball
$7
1 in 787
3 numbers, no Powerball
$7
1 in 359
3 numbers, plus Powerball
$100
1 in 13,644
4 numbers, no Powerball
$100
1 in 19,030
4 numbers, plus Powerball
$10,000
1 in 723,144
All 5 numbers, no Powerball
$200,000
1 in 5,138,133
All 5 numbers, plus Powerball
Jackpot
1 in 195,249,054
What is the theoretical probability of
rolling a 6?
1
6
Dice Review
What is the theoretical probability of
rolling a 1?
1
6
Dice Review
What is the theoretical probability of
rolling an odd number?
1
6
+
1
6
+
1 = 3 = 1
6
6
2
Dice Review
What is the theoretical probability of
rolling a number less than 3?
1 + 1 = 2 = 1
6
6
6
3
Coin Toss
http://www.shodor.org/interactivate/activitie
s/Coin/
Experimental Probability
http://www.shodor.org/interactivate/activitie
s/ExpProbability/